121634834168 has 16 divisors (see below), whose sum is σ = 235422260160. Its totient is φ = 58855564800.

The previous prime is 121634834147. The next prime is 121634834179. The reversal of 121634834168 is 861438436121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 245231273 + ... + 245231768.

It is an arithmetic number, because the mean of its divisors is an integer number (14713891260).

Almost surely, 2^121634834168 is an apocalyptic number.

It is an amenable number.

121634834168 is a deficient number, since it is larger than the sum of its proper divisors (113787425992).

121634834168 is a wasteful number, since it uses less digits than its factorization.

121634834168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490463078 (or 490463074 counting only the distinct ones).

The product of its digits is 663552, while the sum is 47.

The spelling of 121634834168 in words is "one hundred twenty-one billion, six hundred thirty-four million, eight hundred thirty-four thousand, one hundred sixty-eight".