6416537172 has 12 divisors (see below), whose sum is σ = 14971920096. Its totient is φ = 2138845720.

The previous prime is 6416537161. The next prime is 6416537213. The reversal of 6416537172 is 2717356146.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 267355704 + ... + 267355727.

It is an arithmetic number, because the mean of its divisors is an integer number (1247660008).

Almost surely, 2^6416537172 is an apocalyptic number.

It is an amenable number.

6416537172 is an abundant number, since it is smaller than the sum of its proper divisors (8555382924).

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

6416537172 is a wasteful number, since it uses less digits than its factorization.

6416537172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 534711438 (or 534711436 counting only the distinct ones).

The product of its digits is 211680, while the sum is 42.

The square root of 6416537172 is about 80103.2906440179. The cubic root of 6416537172 is about 1858.2332987467.

The spelling of 6416537172 in words is "six billion, four hundred sixteen million, five hundred thirty-seven thousand, one hundred seventy-two".