66402282604 has 24 divisors (see below), whose sum is σ = 132868255520. Its totient is φ = 28444473216.

The previous prime is 66402282599. The next prime is 66402282637. The reversal of 66402282604 is 40628220466.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 509127 + ... + 626110.

Almost surely, 2^66402282604 is an apocalyptic number.

It is an amenable number.

66402282604 is an abundant number, since it is smaller than the sum of its proper divisors (66465972916).

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

66402282604 is a wasteful number, since it uses less digits than its factorization.

66402282604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1137337 (or 1137335 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 40.

The spelling of 66402282604 in words is "sixty-six billion, four hundred two million, two hundred eighty-two thousand, six hundred four".