61516560362144 has 48 divisors (see below), whose sum is σ = 122210772884928. Its totient is φ = 30479029711872.

The previous prime is 61516560362087. The next prime is 61516560362161. The reversal of 61516560362144 is 44126306561516.

It is a junction number, because it is equal to n+sod(n) for n = 61516560362092 and 61516560362101.

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, 13680599 + ... + 17612265.

It is an arithmetic number, because the mean of its divisors is an integer number (2546057768436).

Almost surely, 2^{61516560362144} is an apocalyptic number.

It is an amenable number.

61516560362144 is a deficient number, since it is larger than the sum of its proper divisors (60694212522784).

61516560362144 is a wasteful number, since it uses less digits than its factorization.

61516560362144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3936117 (or 3936109 counting only the distinct ones).

The product of its (nonzero) digits is 3110400, while the sum is 50.

The spelling of 61516560362144 in words is "sixty-one trillion, five hundred sixteen billion, five hundred sixty million, three hundred sixty-two thousand, one hundred forty-four".