105551155056 has 80 divisors (see below), whose sum is σ = 279404179488. Its totient is φ = 34315776000.

The previous prime is 105551155049. The next prime is 105551155081. The reversal of 105551155056 is 650551155501.

It is a super-2 number, since 2×105551155056² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 10655706 + ... + 10665606.

Almost surely, 2^105551155056 is an apocalyptic number.

105551155056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

105551155056 is an abundant number, since it is smaller than the sum of its proper divisors (173853024432).

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

105551155056 is a wasteful number, since it uses less digits than its factorization.

105551155056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15370 (or 15364 counting only the distinct ones).

The product of its (nonzero) digits is 93750, while the sum is 39.

It can be divided in two parts, 10555 and 1155056, that added together give a palindrome (1165611).

The spelling of 105551155056 in words is "one hundred five billion, five hundred fifty-one million, one hundred fifty-five thousand, fifty-six".