61165020665016 has 48 divisors (see below), whose sum is σ = 167988437051760. Its totient is φ = 20101180498560.

The previous prime is 61165020664999. The next prime is 61165020665039. The reversal of 61165020665016 is 61056602056116.

61165020665016 is a `hidden beast` number, since 6 + 1 + 1 + 65 + 0 + 20 + 66 + 501 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5982489085 + ... + 5982499308.

It is an arithmetic number, because the mean of its divisors is an integer number (3499759105245).

Almost surely, 2^{61165020665016} is an apocalyptic number.

It is an amenable number.

61165020665016 is an abundant number, since it is smaller than the sum of its proper divisors (106823416386744).

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

61165020665016 is a wasteful number, since it uses less digits than its factorization.

61165020665016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11964988476 (or 11964988469 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 45.

The spelling of 61165020665016 in words is "sixty-one trillion, one hundred sixty-five billion, twenty million, six hundred sixty-five thousand, sixteen".