57666474432 has 168 divisors, whose sum is σ = 189434419200. Its totient is φ = 16429828608.

The previous prime is 57666474421. The next prime is 57666474461. The reversal of 57666474432 is 23447466675.

It is a tau number, because it is divible by the number of its divisors (168).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1427569 + ... + 1467407.

Almost surely, 2^57666474432 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57666474432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94717209600).

57666474432 is an abundant number, since it is smaller than the sum of its proper divisors (131767944768).

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

57666474432 is a wasteful number, since it uses less digits than its factorization.

57666474432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40223 (or 40210 counting only the distinct ones).

The product of its digits is 20321280, while the sum is 54.

The spelling of 57666474432 in words is "fifty-seven billion, six hundred sixty-six million, four hundred seventy-four thousand, four hundred thirty-two".