161405676136 has 64 divisors (see below), whose sum is σ = 307470873600. Its totient is φ = 79427174400.

The previous prime is 161405676073. The next prime is 161405676137. The reversal of 161405676136 is 631676504161.

161405676136 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (161405676137) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60023080 + ... + 60025768.

It is an arithmetic number, because the mean of its divisors is an integer number (4804232400).

Almost surely, 2^161405676136 is an apocalyptic number.

It is an amenable number.

161405676136 is a deficient number, since it is larger than the sum of its proper divisors (146065197464).

161405676136 is a wasteful number, since it uses less digits than its factorization.

161405676136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3290 (or 3286 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 46.

The spelling of 161405676136 in words is "one hundred sixty-one billion, four hundred five million, six hundred seventy-six thousand, one hundred thirty-six".