66667068574 has 8 divisors (see below), whose sum is σ = 100147018680. Its totient is φ = 33284729016.

The previous prime is 66667068547. The next prime is 66667068649. The reversal of 66667068574 is 47586076666.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

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, 24400929 + ... + 24403660.

It is an arithmetic number, because the mean of its divisors is an integer number (12518377335).

Almost surely, 2^66667068574 is an apocalyptic number.

66667068574 is a deficient number, since it is larger than the sum of its proper divisors (33479950106).

66667068574 is a wasteful number, since it uses less digits than its factorization.

66667068574 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48805274.

The product of its (nonzero) digits is 60963840, while the sum is 61.

The spelling of 66667068574 in words is "sixty-six billion, six hundred sixty-seven million, sixty-eight thousand, five hundred seventy-four".