65646413204 has 24 divisors (see below), whose sum is σ = 116750252640. Its totient is φ = 32290495776.

The previous prime is 65646413179. The next prime is 65646413213. The reversal of 65646413204 is 40231464656.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41087 + ... + 364665.

It is an arithmetic number, because the mean of its divisors is an integer number (4864593860).

Almost surely, 2^65646413204 is an apocalyptic number.

It is an amenable number.

65646413204 is a deficient number, since it is larger than the sum of its proper divisors (51103839436).

65646413204 is a wasteful number, since it uses less digits than its factorization.

65646413204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324407 (or 324405 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 41.

The spelling of 65646413204 in words is "sixty-five billion, six hundred forty-six million, four hundred thirteen thousand, two hundred four".