66460456 has 24 divisors (see below), whose sum is σ = 127607130. Its totient is φ = 32450208.

The previous prime is 66460451. The next prime is 66460469. The reversal of 66460456 is 65406466.

It can be written as a sum of positive squares in only one way, i.e., 35212356 + 31248100 = 5934^2 + 5590^2 .

It is not an unprimeable number, because it can be changed into a prime (66460451) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12546 + ... + 17038.

Almost surely, 2^66460456 is an apocalyptic number.

It is an amenable number.

66460456 is a deficient number, since it is larger than the sum of its proper divisors (61146674).

66460456 is a wasteful number, since it uses less digits than its factorization.

66460456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4585 (or 4538 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 37.

The square root of 66460456 is about 8152.3282563940. The cubic root of 66460456 is about 405.0616295990.

The spelling of 66460456 in words is "sixty-six million, four hundred sixty thousand, four hundred fifty-six".