61566560116 has 12 divisors (see below), whose sum is σ = 107974186432. Its totient is φ = 30716792568.

The previous prime is 61566560113. The next prime is 61566560119. The reversal of 61566560116 is 61106566516.

It is an interprime number because it is at equal distance from previous prime (61566560113) and next prime (61566560119).

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61566560113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16619790 + ... + 16623493.

Almost surely, 2^61566560116 is an apocalyptic number.

It is an amenable number.

61566560116 is a deficient number, since it is larger than the sum of its proper divisors (46407626316).

61566560116 is a wasteful number, since it uses less digits than its factorization.

61566560116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33243750 (or 33243748 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 43.

The spelling of 61566560116 in words is "sixty-one billion, five hundred sixty-six million, five hundred sixty thousand, one hundred sixteen".