55756685382912 has 108 divisors (see below), whose sum is σ = 160777367330580. Its totient is φ = 18583585112064.

The previous prime is 55756685382899. The next prime is 55756685382913. The reversal of 55756685382912 is 21928358665755.

55756685382912 is a `hidden beast` number, since 5 + 5 + 7 + 5 + 6 + 68 + 538 + 29 + 1 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 11267998822656 + 44488686560256 = 3356784^2 + 6669984^2 .

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55756685382913) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20460664 + ... + 23025032.

It is an arithmetic number, because the mean of its divisors is an integer number (1488679327135).

Almost surely, 2^{55756685382912} is an apocalyptic number.

It is an amenable number.

55756685382912 is an abundant number, since it is smaller than the sum of its proper divisors (105020681947668).

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

55756685382912 is a wasteful number, since it uses less digits than its factorization.

55756685382912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2573828 (or 2573811 counting only the distinct ones).

The product of its digits is 1088640000, while the sum is 72.

The spelling of 55756685382912 in words is "fifty-five trillion, seven hundred fifty-six billion, six hundred eighty-five million, three hundred eighty-two thousand, nine hundred twelve".