66922245 has 48 divisors (see below), whose sum is σ = 125973120. Its totient is φ = 32669568.

The previous prime is 66922231. The next prime is 66922253. The reversal of 66922245 is 54222966.

It is not a de Polignac number, because 66922245 - 2⁶ = 66922181 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 80904 + ... + 81726.

It is an arithmetic number, because the mean of its divisors is an integer number (2624440).

Almost surely, 2^66922245 is an apocalyptic number.

66922245 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

66922245 is a deficient number, since it is larger than the sum of its proper divisors (59050875).

66922245 is a wasteful number, since it uses less digits than its factorization.

66922245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 986 (or 983 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 66922245 is about 8180.6017504827. The cubic root of 66922245 is about 405.9976319760.

The spelling of 66922245 in words is "sixty-six million, nine hundred twenty-two thousand, two hundred forty-five".