57433520640 has 160 divisors (see below), whose sum is σ = 183931995456. Its totient is φ = 15288565760.

The previous prime is 57433520633. The next prime is 57433520687. The reversal of 57433520640 is 4602533475.

It is a tau number, because it is divible by the number of its divisors (160).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4547935 + ... + 4560545.

Almost surely, 2^57433520640 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 57433520640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91965997728).

57433520640 is an abundant number, since it is smaller than the sum of its proper divisors (126498474816).

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

57433520640 is a wasteful number, since it uses less digits than its factorization.

57433520640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13230 (or 13214 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 39.

The spelling of 57433520640 in words is "fifty-seven billion, four hundred thirty-three million, five hundred twenty thousand, six hundred forty".