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16162089680 = 2451118366011
BaseRepresentation
bin11110000110101010…
…11110101011010000
31112201100211020001002
433003111132223100
5231044443332210
611231425401132
71111340331662
oct170325365320
945640736032
1016162089680
116944095210
1231707991a8
1316a7528b99
14ad46c6532
15648d624a5
hex3c355ead0

16162089680 has 40 divisors (see below), whose sum is σ = 40992938784. Its totient is φ = 5877123200.

The previous prime is 16162089667. The next prime is 16162089709. The reversal of 16162089680 is 8698026161.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×161620896802 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9182126 + ... + 9183885.

Almost surely, 216162089680 is an apocalyptic number.

16162089680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16162089680 is an abundant number, since it is smaller than the sum of its proper divisors (24830849104).

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

16162089680 is a wasteful number, since it uses less digits than its factorization.

16162089680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18366035 (or 18366029 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 47.

The spelling of 16162089680 in words is "sixteen billion, one hundred sixty-two million, eighty-nine thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 11 16 20 22 40 44 55 80 88 110 176 220 440 880 18366011 36732022 73464044 91830055 146928088 183660110 202026121 293856176 367320220 404052242 734640440 808104484 1010130605 1469280880 1616208968 2020261210 3232417936 4040522420 8081044840 16162089680