121582962168 has 64 divisors (see below), whose sum is σ = 321144912000. Its totient is φ = 38251850112.

The previous prime is 121582962139. The next prime is 121582962217. The reversal of 121582962168 is 861269285121.

It is a self number, because there is not a number n which added to its sum of digits gives 121582962168.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 372930 + ... + 618257.

It is an arithmetic number, because the mean of its divisors is an integer number (5017889250).

Almost surely, 2^121582962168 is an apocalyptic number.

It is an amenable number.

121582962168 is an abundant number, since it is smaller than the sum of its proper divisors (199561949832).

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

121582962168 is a wasteful number, since it uses less digits than its factorization.

121582962168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 991484 (or 991480 counting only the distinct ones).

The product of its digits is 829440, while the sum is 51.

The spelling of 121582962168 in words is "one hundred twenty-one billion, five hundred eighty-two million, nine hundred sixty-two thousand, one hundred sixty-eight".