665253024 has 48 divisors (see below), whose sum is σ = 1747757088. Its totient is φ = 221564672.

The previous prime is 665252971. The next prime is 665253037. The reversal of 665253024 is 420352566.

665253024 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×665253024² = 885123171882289152, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 157954 + ... + 162110.

It is an arithmetic number, because the mean of its divisors is an integer number (36411606).

Almost surely, 2^665253024 is an apocalyptic number.

It is an amenable number.

665253024 is an abundant number, since it is smaller than the sum of its proper divisors (1082504064).

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

665253024 is a wasteful number, since it uses less digits than its factorization.

665253024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5837 (or 5829 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 33.

The square root of 665253024 is about 25792.4993748183. The cubic root of 665253024 is about 872.9625624749.

The spelling of 665253024 in words is "six hundred sixty-five million, two hundred fifty-three thousand, twenty-four".