66969730670 has 8 divisors (see below), whose sum is σ = 120545515224. Its totient is φ = 26787892264.

The previous prime is 66969730669. The next prime is 66969730693. The reversal of 66969730670 is 7603796966.

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, 3348486524 + ... + 3348486543.

It is an arithmetic number, because the mean of its divisors is an integer number (15068189403).

Almost surely, 2^66969730670 is an apocalyptic number.

66969730670 is a deficient number, since it is larger than the sum of its proper divisors (53575784554).

66969730670 is a wasteful number, since it uses less digits than its factorization.

66969730670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6696973074.

The product of its (nonzero) digits is 15431472, while the sum is 59.

The spelling of 66969730670 in words is "sixty-six billion, nine hundred sixty-nine million, seven hundred thirty thousand, six hundred seventy".