161442611052 has 48 divisors (see below), whose sum is σ = 389726316000. Its totient is φ = 51953574400.

The previous prime is 161442611021. The next prime is 161442611063. The reversal of 161442611052 is 250116244161.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 5867824 + ... + 5895272.

It is an arithmetic number, because the mean of its divisors is an integer number (8119298250).

Almost surely, 2^161442611052 is an apocalyptic number.

161442611052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

161442611052 is an abundant number, since it is smaller than the sum of its proper divisors (228283704948).

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

161442611052 is a wasteful number, since it uses less digits than its factorization.

161442611052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44386 (or 44384 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 33.

The spelling of 161442611052 in words is "one hundred sixty-one billion, four hundred forty-two million, six hundred eleven thousand, fifty-two".