122415664 has 20 divisors (see below), whose sum is σ = 271063504. Its totient is φ = 52463808.

The previous prime is 122415661. The next prime is 122415677. The reversal of 122415664 is 466514221.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (122415661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 546387 + ... + 546610.

Almost surely, 2^122415664 is an apocalyptic number.

122415664 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

122415664 is an abundant number, since it is smaller than the sum of its proper divisors (148647840).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122415664 is a wasteful number, since it uses less digits than its factorization.

122415664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1093012 (or 1093006 counting only the distinct ones).

The product of its digits is 11520, while the sum is 31.

The square root of 122415664 is about 11064.1612424982. The cubic root of 122415664 is about 496.5301952769.

Adding to 122415664 its reverse (466514221), we get a palindrome (588929885).

The spelling of 122415664 in words is "one hundred twenty-two million, four hundred fifteen thousand, six hundred sixty-four".