105555555512 has 16 divisors (see below), whose sum is σ = 215909091000. Its totient is φ = 47979797920.

The previous prime is 105555555493. The next prime is 105555555577. The reversal of 105555555512 is 215555555501.

It is a super-2 number, since 2×105555555512² (a number of 23 digits) contains 22 as substring.

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

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 3 ways as a sum of consecutive naturals, for example, 599747387 + ... + 599747562.

Almost surely, 2^105555555512 is an apocalyptic number.

It is an amenable number.

105555555512 is an abundant number, since it is smaller than the sum of its proper divisors (110353535488).

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

105555555512 is a wasteful number, since it uses less digits than its factorization.

105555555512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1199494966 (or 1199494962 counting only the distinct ones).

The product of its (nonzero) digits is 781250, while the sum is 44.

The spelling of 105555555512 in words is "one hundred five billion, five hundred fifty-five million, five hundred fifty-five thousand, five hundred twelve".