66930622 has 16 divisors (see below), whose sum is σ = 109695744. Its totient is φ = 30375000.

The previous prime is 66930601. The next prime is 66930629. The reversal of 66930622 is 22603966.

It is a super-2 number, since 2×66930622² = 8959416322613768, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66930629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14497 + ... + 18547.

It is an arithmetic number, because the mean of its divisors is an integer number (6855984).

Almost surely, 2^66930622 is an apocalyptic number.

66930622 is a deficient number, since it is larger than the sum of its proper divisors (42765122).

66930622 is a wasteful number, since it uses less digits than its factorization.

66930622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4815.

The product of its (nonzero) digits is 23328, while the sum is 34.

The square root of 66930622 is about 8181.1137383611. The cubic root of 66930622 is about 406.0145715365.

The spelling of 66930622 in words is "sixty-six million, nine hundred thirty thousand, six hundred twenty-two".