161052145164 has 36 divisors (see below), whose sum is σ = 408044267176. Its totient is φ = 53560061568.

The previous prime is 161052145157. The next prime is 161052145169. The reversal of 161052145164 is 461541250161.

161052145164 is a `hidden beast` number, since 1 + 610 + 5 + 21 + 4 + 5 + 16 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×161052145164² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (161052145169) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5150314 + ... + 5181489.

Almost surely, 2^161052145164 is an apocalyptic number.

It is an amenable number.

161052145164 is an abundant number, since it is smaller than the sum of its proper divisors (246992122012).

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

161052145164 is a wasteful number, since it uses less digits than its factorization.

161052145164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10332246 (or 10332241 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The spelling of 161052145164 in words is "one hundred sixty-one billion, fifty-two million, one hundred forty-five thousand, one hundred sixty-four".