161359140232 has 32 divisors (see below), whose sum is σ = 318516609600. Its totient is φ = 76422567744.

The previous prime is 161359140203. The next prime is 161359140233. The reversal of 161359140232 is 232041953161.

It is a junction number, because it is equal to n+sod(n) for n = 161359140191 and 161359140200.

It is not an unprimeable number, because it can be changed into a prime (161359140233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1071973 + ... + 1213195.

It is an arithmetic number, because the mean of its divisors is an integer number (9953644050).

Almost surely, 2^161359140232 is an apocalyptic number.

It is an amenable number.

161359140232 is a deficient number, since it is larger than the sum of its proper divisors (157157469368).

161359140232 is a wasteful number, since it uses less digits than its factorization.

161359140232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148765 (or 148761 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 37.

The spelling of 161359140232 in words is "one hundred sixty-one billion, three hundred fifty-nine million, one hundred forty thousand, two hundred thirty-two".