61607056755 has 32 divisors (see below), whose sum is σ = 108907421184. Its totient is φ = 29579787776.

The previous prime is 61607056747. The next prime is 61607056799. The reversal of 61607056755 is 55765070616.

It is a cyclic number.

It is not a de Polignac number, because 61607056755 - 2³ = 61607056747 is a prime.

It is a super-2 number, since 2×61607056755² (a number of 22 digits) contains 22 as substring.

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, 5246229 + ... + 5257958.

It is an arithmetic number, because the mean of its divisors is an integer number (3403356912).

Almost surely, 2^61607056755 is an apocalyptic number.

61607056755 is a deficient number, since it is larger than the sum of its proper divisors (47300364429).

61607056755 is a wasteful number, since it uses less digits than its factorization.

61607056755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10504235.

The product of its (nonzero) digits is 1323000, while the sum is 48.

The spelling of 61607056755 in words is "sixty-one billion, six hundred seven million, fifty-six thousand, seven hundred fifty-five".