122664866 has 16 divisors (see below), whose sum is σ = 189030240. Its totient is φ = 59663520.

The previous prime is 122664851. The next prime is 122664881. The reversal of 122664866 is 668466221.

It is an interprime number because it is at equal distance from previous prime (122664851) and next prime (122664881).

It is a Harshad number since it is a multiple of its sum of digits (41).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29105 + ... + 33051.

It is an arithmetic number, because the mean of its divisors is an integer number (11814390).

Almost surely, 2^122664866 is an apocalyptic number.

122664866 is a deficient number, since it is larger than the sum of its proper divisors (66365374).

122664866 is a wasteful number, since it uses less digits than its factorization.

122664866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4369.

The product of its digits is 165888, while the sum is 41.

The square root of 122664866 is about 11075.4171930451. The cubic root of 122664866 is about 496.8668963303.

The spelling of 122664866 in words is "one hundred twenty-two million, six hundred sixty-four thousand, eight hundred sixty-six".