61056116565 has 32 divisors (see below), whose sum is σ = 98976645120. Its totient is φ = 32134729536.

The previous prime is 61056116531. The next prime is 61056116579. The reversal of 61056116565 is 56561165016.

It is not a de Polignac number, because 61056116565 - 2⁶ = 61056116501 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2527434 + ... + 2551476.

It is an arithmetic number, because the mean of its divisors is an integer number (3093020160).

Almost surely, 2^61056116565 is an apocalyptic number.

It is an amenable number.

61056116565 is a deficient number, since it is larger than the sum of its proper divisors (37920528555).

61056116565 is a wasteful number, since it uses less digits than its factorization.

61056116565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26273.

The product of its (nonzero) digits is 162000, while the sum is 42.

The spelling of 61056116565 in words is "sixty-one billion, fifty-six million, one hundred sixteen thousand, five hundred sixty-five".