660525116 has 12 divisors (see below), whose sum is σ = 1156581888. Its totient is φ = 330073152.

The previous prime is 660525079. The next prime is 660525127. The reversal of 660525116 is 611525066.

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, 39356 + ... + 53571.

It is an arithmetic number, because the mean of its divisors is an integer number (96381824).

Almost surely, 2^660525116 is an apocalyptic number.

It is an amenable number.

660525116 is a deficient number, since it is larger than the sum of its proper divisors (496056772).

660525116 is a wasteful number, since it uses less digits than its factorization.

660525116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94708 (or 94706 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 32.

The square root of 660525116 is about 25700.6831815810. The cubic root of 660525116 is about 870.8896154055.

Subtracting from 660525116 its reverse (611525066), we obtain a triangular number (49000050 = T₉₈₉₉).

The spelling of 660525116 in words is "six hundred sixty million, five hundred twenty-five thousand, one hundred sixteen".