55717889685192 has 512 divisors, whose sum is σ = 180831657600000. Its totient is φ = 15568820822016.

The previous prime is 55717889685151. The next prime is 55717889685209. The reversal of 55717889685192 is 29158698871755.

55717889685192 is a `hidden beast` number, since 5 + 5 + 7 + 1 + 7 + 8 + 8 + 96 + 8 + 519 + 2 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 4586205934 + ... + 4586218082.

It is an arithmetic number, because the mean of its divisors is an integer number (353186831250).

Almost surely, 2^{55717889685192} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55717889685192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90415828800000).

55717889685192 is an abundant number, since it is smaller than the sum of its proper divisors (125113767914808).

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

55717889685192 is a wasteful number, since it uses less digits than its factorization.

55717889685192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12630 (or 12620 counting only the distinct ones).

The product of its digits is 3048192000, while the sum is 81.

The spelling of 55717889685192 in words is "fifty-five trillion, seven hundred seventeen billion, eight hundred eighty-nine million, six hundred eighty-five thousand, one hundred ninety-two".