66950774207 has 8 divisors (see below), whose sum is σ = 68516093184. Its totient is φ = 65385833688.

The previous prime is 66950774197. The next prime is 66950774213. The reversal of 66950774207 is 70247705966.

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

It is a cyclic number.

It is not a de Polignac number, because 66950774207 - 2⁸ = 66950773951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66950774237) 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, 280508 + ... + 461070.

It is an arithmetic number, because the mean of its divisors is an integer number (8564511648).

Almost surely, 2^66950774207 is an apocalyptic number.

66950774207 is a deficient number, since it is larger than the sum of its proper divisors (1565318977).

66950774207 is a wasteful number, since it uses less digits than its factorization.

66950774207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189229.

The product of its (nonzero) digits is 4445280, while the sum is 53.

The spelling of 66950774207 in words is "sixty-six billion, nine hundred fifty million, seven hundred seventy-four thousand, two hundred seven".