65660675 has 24 divisors (see below), whose sum is σ = 86415600. Its totient is φ = 49351680.

The previous prime is 65660663. The next prime is 65660677. The reversal of 65660675 is 57606656.

It is not a de Polignac number, because 65660675 - 2⁴ = 65660659 is a prime.

It is a super-2 number, since 2×65660675² = 8622648482911250, which contains 22 as substring.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (65660677) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 64571 + ... + 65579.

It is an arithmetic number, because the mean of its divisors is an integer number (3600650).

Almost surely, 2^65660675 is an apocalyptic number.

65660675 is a deficient number, since it is larger than the sum of its proper divisors (20754925).

65660675 is a wasteful number, since it uses less digits than its factorization.

65660675 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1175 (or 1170 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 41.

The square root of 65660675 is about 8103.1274826452. The cubic root of 65660675 is about 403.4302391443.

The spelling of 65660675 in words is "sixty-five million, six hundred sixty thousand, six hundred seventy-five".