122666644 has 12 divisors (see below), whose sum is σ = 214763584. Its totient is φ = 61305624.

The previous prime is 122666639. The next prime is 122666647. The reversal of 122666644 is 446666221.

It is a super-3 number, since 3×122666644³ (a number of 25 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122666647) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 5527 + ... + 16609.

Almost surely, 2^122666644 is an apocalyptic number.

It is an amenable number.

122666644 is a deficient number, since it is larger than the sum of its proper divisors (92096940).

122666644 is a wasteful number, since it uses less digits than its factorization.

122666644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13854 (or 13852 counting only the distinct ones).

The product of its digits is 82944, while the sum is 37.

The square root of 122666644 is about 11075.4974606110. The cubic root of 122666644 is about 496.8692969771.

The spelling of 122666644 in words is "one hundred twenty-two million, six hundred sixty-six thousand, six hundred forty-four".