61615560101139 has 48 divisors (see below), whose sum is σ = 99253267143264. Its totient is φ = 36518271091200.

The previous prime is 61615560101129. The next prime is 61615560101167. The reversal of 61615560101139 is 93110106551616.

61615560101139 is a `hidden beast` number, since 6 + 1 + 6 + 1 + 5 + 5 + 601 + 0 + 1 + 1 + 39 = 666.

It is not a de Polignac number, because 61615560101139 - 2²⁹ = 61615023230227 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 61615560101094 and 61615560101103.

It is not an unprimeable number, because it can be changed into a prime (61615560101129) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 28443522 + ... + 30533015.

It is an arithmetic number, because the mean of its divisors is an integer number (2067776398818).

Almost surely, 2^{61615560101139} is an apocalyptic number.

61615560101139 is a deficient number, since it is larger than the sum of its proper divisors (37637707042125).

61615560101139 is a wasteful number, since it uses less digits than its factorization.

61615560101139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58976788 (or 58976785 counting only the distinct ones).

The product of its (nonzero) digits is 145800, while the sum is 45.

The spelling of 61615560101139 in words is "sixty-one trillion, six hundred fifteen billion, five hundred sixty million, one hundred one thousand, one hundred thirty-nine".