57605702640 has 80 divisors (see below), whose sum is σ = 178702848000. Its totient is φ = 15350753536.

The previous prime is 57605702633. The next prime is 57605702659. The reversal of 57605702640 is 4620750675.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 57605702592 and 57605702601.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 261961 + ... + 428759.

It is an arithmetic number, because the mean of its divisors is an integer number (2233785600).

Almost surely, 2^57605702640 is an apocalyptic number.

It is an amenable number.

57605702640 is an abundant number, since it is smaller than the sum of its proper divisors (121097145360).

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

57605702640 is a wasteful number, since it uses less digits than its factorization.

57605702640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168254 (or 168248 counting only the distinct ones).

The product of its (nonzero) digits is 352800, while the sum is 42.

The spelling of 57605702640 in words is "fifty-seven billion, six hundred five million, seven hundred two thousand, six hundred forty".