121632664 has 16 divisors (see below), whose sum is σ = 230155200. Its totient is φ = 60257952.

The previous prime is 121632649. The next prime is 121632677. The reversal of 121632664 is 466236121.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 68872 + ... + 70615.

It is an arithmetic number, because the mean of its divisors is an integer number (14384700).

Almost surely, 2^121632664 is an apocalyptic number.

It is an amenable number.

121632664 is a deficient number, since it is larger than the sum of its proper divisors (108522536).

121632664 is a wasteful number, since it uses less digits than its factorization.

121632664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139602 (or 139598 counting only the distinct ones).

The product of its digits is 10368, while the sum is 31.

The square root of 121632664 is about 11028.7199619901. The cubic root of 121632664 is about 495.4692879683.

Adding to 121632664 its reverse (466236121), we get a palindrome (587868785).

The spelling of 121632664 in words is "one hundred twenty-one million, six hundred thirty-two thousand, six hundred sixty-four".