121646324664 has 32 divisors (see below), whose sum is σ = 337906458000. Its totient is φ = 40548774816.

The previous prime is 121646324663. The next prime is 121646324677. The reversal of 121646324664 is 466423646121.

121646324664 is a `hidden beast` number, since 1 + 2 + 1 + 6 + 4 + 632 + 4 + 6 + 6 + 4 = 666.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121646324663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 281588499 + ... + 281588930.

Almost surely, 2^121646324664 is an apocalyptic number.

It is an amenable number.

121646324664 is an abundant number, since it is smaller than the sum of its proper divisors (216260133336).

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

121646324664 is a wasteful number, since it uses less digits than its factorization.

121646324664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 563177444 (or 563177434 counting only the distinct ones).

The product of its digits is 995328, while the sum is 45.

The spelling of 121646324664 in words is "one hundred twenty-one billion, six hundred forty-six million, three hundred twenty-four thousand, six hundred sixty-four".