105561151610556 has 48 divisors (see below), whose sum is σ = 246633763469184. Its totient is φ = 35140708428096.

The previous prime is 105561151610543. The next prime is 105561151610557. The reversal of 105561151610556 is 655016151165501.

It is a super-2 number, since 2×105561151610556² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105561151610557) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 496224591 + ... + 496437273.

It is an arithmetic number, because the mean of its divisors is an integer number (5138203405608).

Almost surely, 2^{105561151610556} is an apocalyptic number.

It is an amenable number.

105561151610556 is an abundant number, since it is smaller than the sum of its proper divisors (141072611858628).

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

105561151610556 is a wasteful number, since it uses less digits than its factorization.

105561151610556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266970 (or 266968 counting only the distinct ones).

The product of its (nonzero) digits is 675000, while the sum is 48.

The spelling of 105561151610556 in words is "one hundred five trillion, five hundred sixty-one billion, one hundred fifty-one million, six hundred ten thousand, five hundred fifty-six".