60720664 has 32 divisors (see below), whose sum is σ = 119304000. Its totient is φ = 28933632.

The previous prime is 60720607. The next prime is 60720677. The reversal of 60720664 is 46602706.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16672 + ... + 19984.

It is an arithmetic number, because the mean of its divisors is an integer number (3728250).

Almost surely, 2^60720664 is an apocalyptic number.

It is an amenable number.

60720664 is a deficient number, since it is larger than the sum of its proper divisors (58583336).

60720664 is a wasteful number, since it uses less digits than its factorization.

60720664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3427 (or 3423 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 60720664 is about 7792.3465015360. The cubic root of 60720664 is about 393.0479215196.

The spelling of 60720664 in words is "sixty million, seven hundred twenty thousand, six hundred sixty-four".