66101584624 has 40 divisors (see below), whose sum is σ = 128975682528. Its totient is φ = 32817960960.

The previous prime is 66101584603. The next prime is 66101584631. The reversal of 66101584624 is 42648510166.

It is a congruent number.

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, 2597884 + ... + 2623204.

Almost surely, 2^66101584624 is an apocalyptic number.

It is an amenable number.

66101584624 is a deficient number, since it is larger than the sum of its proper divisors (62874097904).

66101584624 is a wasteful number, since it uses less digits than its factorization.

66101584624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26473 (or 26467 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 43.

The spelling of 66101584624 in words is "sixty-six billion, one hundred one million, five hundred eighty-four thousand, six hundred twenty-four".