61600664 has 16 divisors (see below), whose sum is σ = 115758720. Its totient is φ = 30731680.

The previous prime is 61600657. The next prime is 61600699. The reversal of 61600664 is 46600616.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4664 + ... + 12039.

It is an arithmetic number, because the mean of its divisors is an integer number (7234920).

Almost surely, 2^61600664 is an apocalyptic number.

It is an amenable number.

61600664 is a deficient number, since it is larger than the sum of its proper divisors (54158056).

61600664 is a wasteful number, since it uses less digits than its factorization.

61600664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17170 (or 17166 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 61600664 is about 7848.6090487423. The cubic root of 61600664 is about 394.9375834721.

The spelling of 61600664 in words is "sixty-one million, six hundred thousand, six hundred sixty-four".