161052674920 has 32 divisors (see below), whose sum is σ = 383684315400. Its totient is φ = 60631595008.

The previous prime is 161052674911. The next prime is 161052674921. The reversal of 161052674920 is 29476250161.

It can be written as a sum of positive squares in 4 ways, for example, as 94572240676 + 66480434244 = 307526^2 + 257838^2 .

It is not an unprimeable number, because it can be changed into a prime (161052674921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118420405 + ... + 118421764.

Almost surely, 2^161052674920 is an apocalyptic number.

161052674920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

161052674920 is an abundant number, since it is smaller than the sum of its proper divisors (222631640480).

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

161052674920 is a wasteful number, since it uses less digits than its factorization.

161052674920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236842197 (or 236842193 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 43.

The spelling of 161052674920 in words is "one hundred sixty-one billion, fifty-two million, six hundred seventy-four thousand, nine hundred twenty".