105551051511156 has 36 divisors (see below), whose sum is σ = 252439268792256. Its totient is φ = 34325545200320.

The previous prime is 105551051511149. The next prime is 105551051511173. The reversal of 105551051511156 is 651115150155501.

It is a happy number.

It is a super-2 number, since 2×105551051511156² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2616256140 + ... + 2616296483.

It is an arithmetic number, because the mean of its divisors is an integer number (7012201910896).

Almost surely, 2^{105551051511156} is an apocalyptic number.

It is an amenable number.

105551051511156 is an abundant number, since it is smaller than the sum of its proper divisors (146888217281100).

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

105551051511156 is a wasteful number, since it uses less digits than its factorization.

105551051511156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5232552712 (or 5232552669 counting only the distinct ones).

The product of its (nonzero) digits is 93750, while the sum is 42.

The spelling of 105551051511156 in words is "one hundred five trillion, five hundred fifty-one billion, fifty-one million, five hundred eleven thousand, one hundred fifty-six".