61316604 has 36 divisors (see below), whose sum is σ = 155375584. Its totient is φ = 20388672.

The previous prime is 61316587. The next prime is 61316611. The reversal of 61316604 is 40661316.

It is a tau number, because it is divible by the number of its divisors (36).

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, 14589 + ... + 18315.

Almost surely, 2^61316604 is an apocalyptic number.

It is an amenable number.

61316604 is an abundant number, since it is smaller than the sum of its proper divisors (94058980).

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

61316604 is a wasteful number, since it uses less digits than its factorization.

61316604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4194 (or 4189 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 61316604 is about 7830.4919385694. The cubic root of 61316604 is about 394.3295875655.

The spelling of 61316604 in words is "sixty-one million, three hundred sixteen thousand, six hundred four".