65647074656 has 12 divisors (see below), whose sum is σ = 129242678292. Its totient is φ = 32823537312.

The previous prime is 65647074637. The next prime is 65647074671.

65647074656 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1025735510 + ... + 1025735573.

It is an arithmetic number, because the mean of its divisors is an integer number (10770223191).

Almost surely, 2^65647074656 is an apocalyptic number.

It is an amenable number.

65647074656 is a deficient number, since it is larger than the sum of its proper divisors (63595603636).

65647074656 is a wasteful number, since it uses less digits than its factorization.

65647074656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2051471093 (or 2051471085 counting only the distinct ones).

The product of its (nonzero) digits is 25401600, while the sum is 56.

The spelling of 65647074656 in words is "sixty-five billion, six hundred forty-seven million, seventy-four thousand, six hundred fifty-six".