66700049488 has 40 divisors (see below), whose sum is σ = 130812716736. Its totient is φ = 32943552000.

The previous prime is 66700049441. The next prime is 66700049501. The reversal of 66700049488 is 88494000766.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 610383 + ... + 711313.

Almost surely, 2^66700049488 is an apocalyptic number.

It is an amenable number.

66700049488 is a deficient number, since it is larger than the sum of its proper divisors (64112667248).

66700049488 is a wasteful number, since it uses less digits than its factorization.

66700049488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101443 (or 101437 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 52.

The spelling of 66700049488 in words is "sixty-six billion, seven hundred million, forty-nine thousand, four hundred eighty-eight".