105561363612 has 12 divisors (see below), whose sum is σ = 246309848456. Its totient is φ = 35187121200.

The previous prime is 105561363581. The next prime is 105561363631. The reversal of 105561363612 is 216363165501.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×105561363612² (a number of 23 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 3 ways as a sum of consecutive naturals, for example, 4398390139 + ... + 4398390162.

Almost surely, 2^105561363612 is an apocalyptic number.

105561363612 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

105561363612 is an abundant number, since it is smaller than the sum of its proper divisors (140748484844).

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

105561363612 is a wasteful number, since it uses less digits than its factorization.

105561363612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8796780308 (or 8796780306 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 39.

The spelling of 105561363612 in words is "one hundred five billion, five hundred sixty-one million, three hundred sixty-three thousand, six hundred twelve".