660056652 has 36 divisors (see below), whose sum is σ = 1674525216. Its totient is φ = 219221280.

The previous prime is 660056641. The next prime is 660056689. The reversal of 660056652 is 256650066.

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

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 23124 + ... + 43067.

Almost surely, 2^660056652 is an apocalyptic number.

It is an amenable number.

660056652 is an abundant number, since it is smaller than the sum of its proper divisors (1014468564).

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

660056652 is a wasteful number, since it uses less digits than its factorization.

660056652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66478 (or 66473 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The square root of 660056652 is about 25691.5677217254. The cubic root of 660056652 is about 870.6836797989.

The spelling of 660056652 in words is "six hundred sixty million, fifty-six thousand, six hundred fifty-two".