55157669953056 has 384 divisors, whose sum is σ = 185858562597120. Its totient is φ = 15728427417600.

The previous prime is 55157669953027. The next prime is 55157669953069. The reversal of 55157669953056 is 65035996675155.

55157669953056 is a `hidden beast` number, since 5 + 5 + 15 + 76 + 6 + 9 + 9 + 530 + 5 + 6 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1005087090 + ... + 1005141966.

It is an arithmetic number, because the mean of its divisors is an integer number (484006673430).

Almost surely, 2^{55157669953056} 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 55157669953056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92929281298560).

55157669953056 is an abundant number, since it is smaller than the sum of its proper divisors (130700892644064).

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

55157669953056 is a wasteful number, since it uses less digits than its factorization.

55157669953056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61145 (or 61131 counting only the distinct ones).

The product of its (nonzero) digits is 1148175000, while the sum is 72.

The spelling of 55157669953056 in words is "fifty-five trillion, one hundred fifty-seven billion, six hundred sixty-nine million, nine hundred fifty-three thousand, fifty-six".