66795722 has 12 divisors (see below), whose sum is σ = 116551890. Its totient is φ = 28626696.

The previous prime is 66795709. The next prime is 66795761. The reversal of 66795722 is 22759766.

It can be written as a sum of positive squares in only one way, i.e., 66275881 + 519841 = 8141^2 + 721^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 340697 + ... + 340892.

Almost surely, 2^66795722 is an apocalyptic number.

66795722 is a deficient number, since it is larger than the sum of its proper divisors (49756168).

66795722 is a wasteful number, since it uses less digits than its factorization.

66795722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 681605 (or 681598 counting only the distinct ones).

The product of its digits is 317520, while the sum is 44.

The square root of 66795722 is about 8172.8649811434. The cubic root of 66795722 is about 405.7416112536.

The spelling of 66795722 in words is "sixty-six million, seven hundred ninety-five thousand, seven hundred twenty-two".