57665483736 has 128 divisors (see below), whose sum is σ = 165758261760. Its totient is φ = 16376140800.

The previous prime is 57665483653. The next prime is 57665483737. The reversal of 57665483736 is 63738456675.

It is a self number, because there is not a number n which added to its sum of digits gives 57665483736.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57665483737) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 38936116 + ... + 38937596.

It is an arithmetic number, because the mean of its divisors is an integer number (1294986420).

Almost surely, 2^57665483736 is an apocalyptic number.

57665483736 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 57665483736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82879130880).

57665483736 is an abundant number, since it is smaller than the sum of its proper divisors (108092778024).

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

57665483736 is a wasteful number, since it uses less digits than its factorization.

57665483736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2745 (or 2741 counting only the distinct ones).

The product of its digits is 76204800, while the sum is 60.

The spelling of 57665483736 in words is "fifty-seven billion, six hundred sixty-five million, four hundred eighty-three thousand, seven hundred thirty-six".