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161058480816 = 2434091820187
BaseRepresentation
bin1001010111111111010…
…1010110001010110000
3120101201102221112201010
42111333311112022300
510114321432341231
6201553402110520
714431115333052
oct2257765261260
9511642845633
10161058480816
116233934a4a2
122726a1ab440
131225964142c
147b1c3258d2
1542c9871546
hex257fd562b0

161058480816 has 40 divisors (see below), whose sum is σ = 416169952704. Its totient is φ = 53672971840.

The previous prime is 161058480809. The next prime is 161058480827. The reversal of 161058480816 is 618084850161.

It is a Harshad number since it is a multiple of its sum of digits (48).

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, 213726 + ... + 606461.

Almost surely, 2161058480816 is an apocalyptic number.

161058480816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

161058480816 is an abundant number, since it is smaller than the sum of its proper divisors (255111471888).

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

161058480816 is a wasteful number, since it uses less digits than its factorization.

161058480816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 824289 (or 824283 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 48.

The spelling of 161058480816 in words is "one hundred sixty-one billion, fifty-eight million, four hundred eighty thousand, eight hundred sixteen".

Divisors: 1 2 3 4 6 8 12 16 24 48 4091 8182 12273 16364 24546 32728 49092 65456 98184 196368 820187 1640374 2460561 3280748 4921122 6561496 9842244 13122992 19684488 39368976 3355385017 6710770034 10066155051 13421540068 20132310102 26843080136 40264620204 53686160272 80529240408 161058480816