57663273136 has 160 divisors (see below), whose sum is σ = 139669060608. Its totient is φ = 22523719680.

The previous prime is 57663273133. The next prime is 57663273137. The reversal of 57663273136 is 63137236675.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 57663273136.

It is not an unprimeable number, because it can be changed into a prime (57663273133) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4535140 + ... + 4547836.

Almost surely, 2^57663273136 is an apocalyptic number.

57663273136 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57663273136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69834530304).

57663273136 is an abundant number, since it is smaller than the sum of its proper divisors (82005787472).

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

57663273136 is a wasteful number, since it uses less digits than its factorization.

57663273136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12819 (or 12813 counting only the distinct ones).

The product of its digits is 2857680, while the sum is 49.

The spelling of 57663273136 in words is "fifty-seven billion, six hundred sixty-three million, two hundred seventy-three thousand, one hundred thirty-six".