61206562556155 has 16 divisors (see below), whose sum is σ = 77888536735680. Its totient is φ = 46013712520192.

The previous prime is 61206562556123. The next prime is 61206562556179. The reversal of 61206562556155 is 55165526560216.

It is not a de Polignac number, because 61206562556155 - 2⁵ = 61206562556123 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 61206562556096 and 61206562556105.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 556418890 + ... + 556528879.

It is an arithmetic number, because the mean of its divisors is an integer number (4868033545980).

Almost surely, 2^{61206562556155} is an apocalyptic number.

61206562556155 is a deficient number, since it is larger than the sum of its proper divisors (16681974179525).

61206562556155 is a wasteful number, since it uses less digits than its factorization.

61206562556155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1112948438.

The product of its (nonzero) digits is 16200000, while the sum is 55.

The spelling of 61206562556155 in words is "sixty-one trillion, two hundred six billion, five hundred sixty-two million, five hundred fifty-six thousand, one hundred fifty-five".