66703366707 has 8 divisors (see below), whose sum is σ = 89398640784. Its totient is φ = 44238501888.

The previous prime is 66703366693. The next prime is 66703366727. The reversal of 66703366707 is 70766330766.

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

It is not a de Polignac number, because 66703366707 - 2¹⁹ = 66702842419 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 66703366707.

It is not an unprimeable number, because it can be changed into a prime (66703366727) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57601638 + ... + 57602795.

It is an arithmetic number, because the mean of its divisors is an integer number (11174830098).

Almost surely, 2^66703366707 is an apocalyptic number.

66703366707 is a deficient number, since it is larger than the sum of its proper divisors (22695274077).

66703366707 is a wasteful number, since it uses less digits than its factorization.

66703366707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115204629.

The product of its (nonzero) digits is 4000752, while the sum is 51.

The spelling of 66703366707 in words is "sixty-six billion, seven hundred three million, three hundred sixty-six thousand, seven hundred seven".