61516051165065 has 64 divisors (see below), whose sum is σ = 114420080217600. Its totient is φ = 27638948874240.

The previous prime is 61516051165039. The next prime is 61516051165133. The reversal of 61516051165065 is 56056115061516.

It is not a de Polignac number, because 61516051165065 - 2⁹ = 61516051164553 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4418661 + ... + 11939709.

It is an arithmetic number, because the mean of its divisors is an integer number (1787813753400).

Almost surely, 2^{61516051165065} is an apocalyptic number.

It is an amenable number.

61516051165065 is a deficient number, since it is larger than the sum of its proper divisors (52904029052535).

61516051165065 is a wasteful number, since it uses less digits than its factorization.

61516051165065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7522402.

The product of its (nonzero) digits is 810000, while the sum is 48.

The spelling of 61516051165065 in words is "sixty-one trillion, five hundred sixteen billion, fifty-one million, one hundred sixty-five thousand, sixty-five".