161507017104 has 20 divisors (see below), whose sum is σ = 417226460976. Its totient is φ = 53835672352.

The previous prime is 161507017103. The next prime is 161507017109. The reversal of 161507017104 is 401710705161.

It is not an unprimeable number, because it can be changed into a prime (161507017103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1682364714 + ... + 1682364809.

Almost surely, 2^161507017104 is an apocalyptic number.

It is an amenable number.

161507017104 is an abundant number, since it is smaller than the sum of its proper divisors (255719443872).

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

161507017104 is a wasteful number, since it uses less digits than its factorization.

161507017104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3364729534 (or 3364729528 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 33.

The spelling of 161507017104 in words is "one hundred sixty-one billion, five hundred seven million, seventeen thousand, one hundred four".