665325046 has 16 divisors (see below), whose sum is σ = 1026916560. Its totient is φ = 323053920.

The previous prime is 665325043. The next prime is 665325053. The reversal of 665325046 is 640523566.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a junction number, because it is equal to n+sod(n) for n = 665324996 and 665325014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (665325041) 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, 31725 + ... + 48343.

It is an arithmetic number, because the mean of its divisors is an integer number (64182285).

Almost surely, 2^665325046 is an apocalyptic number.

665325046 is a deficient number, since it is larger than the sum of its proper divisors (361591514).

665325046 is a wasteful number, since it uses less digits than its factorization.

665325046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17199.

The product of its (nonzero) digits is 129600, while the sum is 37.

The square root of 665325046 is about 25793.8955181260. The cubic root of 665325046 is about 872.9940643941.

The spelling of 665325046 in words is "six hundred sixty-five million, three hundred twenty-five thousand, forty-six".