100551055056056 has 128 divisors (see below), whose sum is σ = 217548223200000. Its totient is φ = 43089533660160.

The previous prime is 100551055056043. The next prime is 100551055056091. The reversal of 100551055056056 is 650650550155001.

It is a super-2 number, since 2×100551055056056² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a junction number, because it is equal to n+sod(n) for n = 100551055055998 and 100551055056016.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 803619356 + ... + 803744468.

It is an arithmetic number, because the mean of its divisors is an integer number (1699595493750).

Almost surely, 2^{100551055056056} 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 100551055056056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108774111600000).

100551055056056 is an abundant number, since it is smaller than the sum of its proper divisors (116997168143944).

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

100551055056056 is a wasteful number, since it uses less digits than its factorization.

100551055056056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127477 (or 127473 counting only the distinct ones).

The product of its (nonzero) digits is 562500, while the sum is 44.

The spelling of 100551055056056 in words is "one hundred trillion, five hundred fifty-one billion, fifty-five million, fifty-six thousand, fifty-six".