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16121113757660 = 2252557341392363
BaseRepresentation
bin1110101010010111110101…
…0000100100011111011100
32010002011102010200011111202
43222211331100210133130
54103112020110221120
654141534252135032
73252466140663662
oct352457520443734
963064363604452
1016121113757660
115155a2049216a
121984468467478
138cc2a335c382
143da3a2144c32
151ce531a33875
hexea97d4247dc

16121113757660 has 48 divisors (see below), whose sum is σ = 33877868655456. Its totient is φ = 6443965216512.

The previous prime is 16121113757657. The next prime is 16121113757761. The reversal of 16121113757660 is 6675731112161.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 174494639 + ... + 174587001.

It is an arithmetic number, because the mean of its divisors is an integer number (705788930322).

Almost surely, 216121113757660 is an apocalyptic number.

16121113757660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16121113757660 is an abundant number, since it is smaller than the sum of its proper divisors (17756754897796).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16121113757660 is a wasteful number, since it uses less digits than its factorization.

16121113757660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98342 (or 98340 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 47.

The spelling of 16121113757660 in words is "sixteen trillion, one hundred twenty-one billion, one hundred thirteen million, seven hundred fifty-seven thousand, six hundred sixty".

Divisors: 1 2 4 5 10 20 2557 3413 5114 6826 10228 12785 13652 17065 25570 34130 51140 68260 92363 184726 369452 461815 923630 1847260 8727041 17454082 34908164 43635205 87270410 174540820 236172191 315234919 472344382 630469838 944688764 1180860955 1260939676 1576174595 2361721910 3152349190 4723443820 6304698380 806055687883 1612111375766 3224222751532 4030278439415 8060556878830 16121113757660