161152308657 has 12 divisors (see below), whose sum is σ = 232795465344. Its totient is φ = 107425683960.

The previous prime is 161152308649. The next prime is 161152308703. The reversal of 161152308657 is 756803251161.

161152308657 is a `hidden beast` number, since 1 + 61 + 1 + 523 + 0 + 8 + 65 + 7 = 666.

It is not a de Polignac number, because 161152308657 - 2³ = 161152308649 is a prime.

It is not an unprimeable number, because it can be changed into a prime (161152308617) 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, 653769 + ... + 865862.

It is an arithmetic number, because the mean of its divisors is an integer number (19399622112).

Almost surely, 2^161152308657 is an apocalyptic number.

It is an amenable number.

161152308657 is a deficient number, since it is larger than the sum of its proper divisors (71643156687).

161152308657 is a wasteful number, since it uses less digits than its factorization.

161152308657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1531420 (or 1531417 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 45.

The spelling of 161152308657 in words is "one hundred sixty-one billion, one hundred fifty-two million, three hundred eight thousand, six hundred fifty-seven".