665472124 has 6 divisors (see below), whose sum is σ = 1164576224. Its totient is φ = 332736060.

The previous prime is 665472103. The next prime is 665472139. The reversal of 665472124 is 421274566.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83184012 + ... + 83184019.

Almost surely, 2^665472124 is an apocalyptic number.

It is an amenable number.

665472124 is a deficient number, since it is larger than the sum of its proper divisors (499104100).

665472124 is a wasteful number, since it uses less digits than its factorization.

665472124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166368035 (or 166368033 counting only the distinct ones).

The product of its digits is 80640, while the sum is 37.

The square root of 665472124 is about 25796.7463839919. The cubic root of 665472124 is about 873.0583882217.

The spelling of 665472124 in words is "six hundred sixty-five million, four hundred seventy-two thousand, one hundred twenty-four".