121884664 has 32 divisors (see below), whose sum is σ = 250467840. Its totient is φ = 55144800.

The previous prime is 121884647. The next prime is 121884667. The reversal of 121884664 is 466488121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121884667) 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 7 ways as a sum of consecutive naturals, for example, 16519 + ... + 22729.

It is an arithmetic number, because the mean of its divisors is an integer number (7827120).

Almost surely, 2^121884664 is an apocalyptic number.

It is an amenable number.

121884664 is an abundant number, since it is smaller than the sum of its proper divisors (128583176).

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

121884664 is a wasteful number, since it uses less digits than its factorization.

121884664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6451 (or 6447 counting only the distinct ones).

The product of its digits is 73728, while the sum is 40.

The square root of 121884664 is about 11040.1387672438. The cubic root of 121884664 is about 495.8112249886.

The spelling of 121884664 in words is "one hundred twenty-one million, eight hundred eighty-four thousand, six hundred sixty-four".