66468256 has 12 divisors (see below), whose sum is σ = 130859442. Its totient is φ = 33234112.

The previous prime is 66468211. The next prime is 66468277. The reversal of 66468256 is 65286466.

It can be written as a sum of positive squares in only one way, i.e., 42458256 + 24010000 = 6516^2 + 4900^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1038535 + ... + 1038598.

Almost surely, 2^66468256 is an apocalyptic number.

It is an amenable number.

66468256 is a deficient number, since it is larger than the sum of its proper divisors (64391186).

66468256 is a wasteful number, since it uses less digits than its factorization.

66468256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2077143 (or 2077135 counting only the distinct ones).

The product of its digits is 414720, while the sum is 43.

The square root of 66468256 is about 8152.8066333012. The cubic root of 66468256 is about 405.0774753982.

The spelling of 66468256 in words is "sixty-six million, four hundred sixty-eight thousand, two hundred fifty-six".