66260460684 has 48 divisors (see below), whose sum is σ = 168692025600. Its totient is φ = 20075471040.

The previous prime is 66260460671. The next prime is 66260460691. The reversal of 66260460684 is 48606406266.

It is a happy number.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 786642 + ... + 866790.

It is an arithmetic number, because the mean of its divisors is an integer number (3514417200).

Almost surely, 2^66260460684 is an apocalyptic number.

It is an amenable number.

66260460684 is an abundant number, since it is smaller than the sum of its proper divisors (102431564916).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66260460684 is a wasteful number, since it uses less digits than its factorization.

66260460684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86430 (or 86428 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 48.

The spelling of 66260460684 in words is "sixty-six billion, two hundred sixty million, four hundred sixty thousand, six hundred eighty-four".