665460402 has 8 divisors (see below), whose sum is σ = 1330920816. Its totient is φ = 221820132.

The previous prime is 665460347. The next prime is 665460413. The reversal of 665460402 is 204064566.

It is a sphenic number, since it is the product of 3 distinct primes.

665460402 is an admirable 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, 55455028 + ... + 55455039.

It is an arithmetic number, because the mean of its divisors is an integer number (166365102).

Almost surely, 2^665460402 is an apocalyptic number.

665460402 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

665460402 is a wasteful number, since it uses less digits than its factorization.

665460402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110910072.

The product of its (nonzero) digits is 34560, while the sum is 33.

The square root of 665460402 is about 25796.5191837969. The cubic root of 665460402 is about 873.0532620113.

The spelling of 665460402 in words is "six hundred sixty-five million, four hundred sixty thousand, four hundred two".