665883054 has 24 divisors (see below), whose sum is σ = 1450004400. Its totient is φ = 220844448.

The previous prime is 665883017. The next prime is 665883073. The reversal of 665883054 is 450388566.

665883054 is a `hidden beast` number, since 66 + 588 + 3 + 0 + 5 + 4 = 666.

665883054 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 89367 + ... + 96530.

It is an arithmetic number, because the mean of its divisors is an integer number (60416850).

Almost surely, 2^665883054 is an apocalyptic number.

665883054 is an abundant number, since it is smaller than the sum of its proper divisors (784121346).

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

665883054 is a wasteful number, since it uses less digits than its factorization.

665883054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186104 (or 186101 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 45.

The square root of 665883054 is about 25804.7099189276. The cubic root of 665883054 is about 873.2380561846.

The spelling of 665883054 in words is "six hundred sixty-five million, eight hundred eighty-three thousand, fifty-four".