66372122 has 8 divisors (see below), whose sum is σ = 99844500. Its totient is φ = 33090624.

The previous prime is 66372113. The next prime is 66372127. The reversal of 66372122 is 22127366.

66372122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 52983841 + 13388281 = 7279^2 + 3659^2 .

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

It is not an unprimeable number, because it can be changed into a prime (66372127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46847 + ... + 48242.

Almost surely, 2^66372122 is an apocalyptic number.

66372122 is a deficient number, since it is larger than the sum of its proper divisors (33472378).

66372122 is a wasteful number, since it uses less digits than its factorization.

66372122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95440.

The product of its digits is 6048, while the sum is 29.

The square root of 66372122 is about 8146.9087389021. The cubic root of 66372122 is about 404.8820913685.

Adding to 66372122 its reverse (22127366), we get a palindrome (88499488).

The spelling of 66372122 in words is "sixty-six million, three hundred seventy-two thousand, one hundred twenty-two".