65667476656 has 20 divisors (see below), whose sum is σ = 128356675272. Its totient is φ = 32543173376.

The previous prime is 65667476653. The next prime is 65667476659.

65667476656 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (65667476653) and next prime (65667476659).

It is not an unprimeable number, because it can be changed into a prime (65667476653) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18158446 + ... + 18162061.

Almost surely, 2^65667476656 is an apocalyptic number.

It is an amenable number.

65667476656 is a deficient number, since it is larger than the sum of its proper divisors (62689198616).

65667476656 is a wasteful number, since it uses less digits than its factorization.

65667476656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36320628 (or 36320622 counting only the distinct ones).

The product of its digits is 228614400, while the sum is 64.

The spelling of 65667476656 in words is "sixty-five billion, six hundred sixty-seven million, four hundred seventy-six thousand, six hundred fifty-six".