66246044464 has 40 divisors (see below), whose sum is σ = 130192323408. Its totient is φ = 32650752000.

The previous prime is 66246044443. The next prime is 66246044497. The reversal of 66246044464 is 46444064266.

66246044464 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

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, 304524 + ... + 474580.

Almost surely, 2^66246044464 is an apocalyptic number.

It is an amenable number.

66246044464 is a deficient number, since it is larger than the sum of its proper divisors (63946278944).

66246044464 is a wasteful number, since it uses less digits than its factorization.

66246044464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170413 (or 170407 counting only the distinct ones).

The product of its (nonzero) digits is 2654208, while the sum is 46.

The spelling of 66246044464 in words is "sixty-six billion, two hundred forty-six million, forty-four thousand, four hundred sixty-four".