665362552 has 8 divisors (see below), whose sum is σ = 1247554800. Its totient is φ = 332681272.

The previous prime is 665362471. The next prime is 665362589. The reversal of 665362552 is 255263566.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41585152 + ... + 41585167.

It is an arithmetic number, because the mean of its divisors is an integer number (155944350).

Almost surely, 2^665362552 is an apocalyptic number.

It is an amenable number.

665362552 is a deficient number, since it is larger than the sum of its proper divisors (582192248).

665362552 is a wasteful number, since it uses less digits than its factorization.

665362552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83170325 (or 83170321 counting only the distinct ones).

The product of its digits is 324000, while the sum is 40.

The square root of 665362552 is about 25794.6225403668. The cubic root of 665362552 is about 873.0104683560.

The spelling of 665362552 in words is "six hundred sixty-five million, three hundred sixty-two thousand, five hundred fifty-two".