66035440264 has 16 divisors (see below), whose sum is σ = 123840435600. Its totient is φ = 33011324112.

The previous prime is 66035440241. The next prime is 66035440297. The reversal of 66035440264 is 46204453066.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 755482 + ... + 838345.

It is an arithmetic number, because the mean of its divisors is an integer number (7740027225).

Almost surely, 2^66035440264 is an apocalyptic number.

It is an amenable number.

66035440264 is a deficient number, since it is larger than the sum of its proper divisors (57804995336).

66035440264 is a wasteful number, since it uses less digits than its factorization.

66035440264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1599012 (or 1599008 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 40.

The spelling of 66035440264 in words is "sixty-six billion, thirty-five million, four hundred forty thousand, two hundred sixty-four".