161823758015160 has 128 divisors (see below), whose sum is σ = 539819021721600. Its totient is φ = 43120482537600.

The previous prime is 161823758015107. The next prime is 161823758015177. The reversal of 161823758015160 is 61510857328161.

161823758015160 is a `hidden beast` number, since 1 + 6 + 1 + 8 + 2 + 3 + 7 + 580 + 1 + 51 + 6 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 161823758015097 and 161823758015106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 55023816 + ... + 57890135.

It is an arithmetic number, because the mean of its divisors is an integer number (4217336107200).

Almost surely, 2^{161823758015160} is an apocalyptic number.

161823758015160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

161823758015160 is an abundant number, since it is smaller than the sum of its proper divisors (377995263706440).

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

161823758015160 is a wasteful number, since it uses less digits than its factorization.

161823758015160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112915298 (or 112915288 counting only the distinct ones).

The product of its (nonzero) digits is 2419200, while the sum is 54.

The spelling of 161823758015160 in words is "one hundred sixty-one trillion, eight hundred twenty-three billion, seven hundred fifty-eight million, fifteen thousand, one hundred sixty".