121616861702036 has 24 divisors (see below), whose sum is σ = 214880997467136. Its totient is φ = 60223968080640.

The previous prime is 121616861702027. The next prime is 121616861702053. The reversal of 121616861702036 is 630207168616121.

It is a super-2 number, since 2×121616861702036² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 209345021 + ... + 209925156.

It is an arithmetic number, because the mean of its divisors is an integer number (8953374894464).

Almost surely, 2^{121616861702036} is an apocalyptic number.

It is an amenable number.

121616861702036 is a deficient number, since it is larger than the sum of its proper divisors (93264135765100).

121616861702036 is a wasteful number, since it uses less digits than its factorization.

121616861702036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 419270879 (or 419270877 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 50.

The spelling of 121616861702036 in words is "one hundred twenty-one trillion, six hundred sixteen billion, eight hundred sixty-one million, seven hundred two thousand, thirty-six".