66772622 has 8 divisors (see below), whose sum is σ = 114467376. Its totient is φ = 28616832.

The previous prime is 66772609. The next prime is 66772627. The reversal of 66772622 is 22627766.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66772627) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2384723 + ... + 2384750.

It is an arithmetic number, because the mean of its divisors is an integer number (14308422).

Almost surely, 2^66772622 is an apocalyptic number.

66772622 is a deficient number, since it is larger than the sum of its proper divisors (47694754).

66772622 is a wasteful number, since it uses less digits than its factorization.

66772622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4769482.

The product of its digits is 84672, while the sum is 38.

The square root of 66772622 is about 8171.4516458216. The cubic root of 66772622 is about 405.6948332485.

The spelling of 66772622 in words is "sixty-six million, seven hundred seventy-two thousand, six hundred twenty-two".