161314419328 has 64 divisors (see below), whose sum is σ = 323395855200. Its totient is φ = 80150012928.

The previous prime is 161314419323. The next prime is 161314419373. The reversal of 161314419328 is 823914413161.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-3 number, since 3×161314419328³ (a number of 35 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (161314419323) 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, 13505583 + ... + 13517521.

Almost surely, 2^161314419328 is an apocalyptic number.

It is an amenable number.

161314419328 is an abundant number, since it is smaller than the sum of its proper divisors (162081435872).

161314419328 is a wasteful number, since it uses less digits than its factorization.

161314419328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12609 (or 12597 counting only the distinct ones).

The product of its digits is 124416, while the sum is 43.

The spelling of 161314419328 in words is "one hundred sixty-one billion, three hundred fourteen million, four hundred nineteen thousand, three hundred twenty-eight".