102660056 has 8 divisors (see below), whose sum is σ = 192487620. Its totient is φ = 51330024.

The previous prime is 102660053. The next prime is 102660067. The reversal of 102660056 is 650066201.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102660053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6416246 + ... + 6416261.

Almost surely, 2^102660056 is an apocalyptic number.

It is an amenable number.

102660056 is a deficient number, since it is larger than the sum of its proper divisors (89827564).

102660056 is a wasteful number, since it uses less digits than its factorization.

102660056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12832513 (or 12832509 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 102660056 is about 10132.1298846787. The cubic root of 102660056 is about 468.2385493381.

The spelling of 102660056 in words is "one hundred two million, six hundred sixty thousand, fifty-six".