105561240612 has 24 divisors (see below), whose sum is σ = 246314895456. Its totient is φ = 35186318208.

The previous prime is 105561240593. The next prime is 105561240643. The reversal of 105561240612 is 216042165501.

It is a super-2 number, since 2×105561240612² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 887788 + ... + 999644.

It is an arithmetic number, because the mean of its divisors is an integer number (10263120644).

Almost surely, 2^105561240612 is an apocalyptic number.

105561240612 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

105561240612 is an abundant number, since it is smaller than the sum of its proper divisors (140753654844).

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

105561240612 is a wasteful number, since it uses less digits than its factorization.

105561240612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190507 (or 190505 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 33.

The spelling of 105561240612 in words is "one hundred five billion, five hundred sixty-one million, two hundred forty thousand, six hundred twelve".