161606115061576 has 32 divisors (see below), whose sum is σ = 307307427638400. Its totient is φ = 79657676542080.

The previous prime is 161606115061513. The next prime is 161606115061583. The reversal of 161606115061576 is 675160511606161.

It is a super-2 number, since 2×161606115061576² (a number of 29 digits) contains 22 as substring.

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, 6854781 + ... + 19240588.

It is an arithmetic number, because the mean of its divisors is an integer number (9603357113700).

Almost surely, 2^{161606115061576} is an apocalyptic number.

It is an amenable number.

161606115061576 is a deficient number, since it is larger than the sum of its proper divisors (145701312576824).

161606115061576 is a wasteful number, since it uses less digits than its factorization.

161606115061576 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26106349 (or 26106345 counting only the distinct ones).

The product of its (nonzero) digits is 1360800, while the sum is 52.

The spelling of 161606115061576 in words is "one hundred sixty-one trillion, six hundred six billion, one hundred fifteen million, sixty-one thousand, five hundred seventy-six".