57644215663602 has 128 divisors (see below), whose sum is σ = 130938129642240. Its totient is φ = 16806968156160.

The previous prime is 57644215663591. The next prime is 57644215663733. The reversal of 57644215663602 is 20636651244675.

It is a happy number.

It is a super-2 number, since 2×57644215663602² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 788087952 + ... + 788161092.

It is an arithmetic number, because the mean of its divisors is an integer number (1022954137830).

Almost surely, 2^{57644215663602} is an apocalyptic number.

57644215663602 is an abundant number, since it is smaller than the sum of its proper divisors (73293913978638).

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

57644215663602 is a wasteful number, since it uses less digits than its factorization.

57644215663602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80908.

The product of its (nonzero) digits is 43545600, while the sum is 57.

The spelling of 57644215663602 in words is "fifty-seven trillion, six hundred forty-four billion, two hundred fifteen million, six hundred sixty-three thousand, six hundred two".