121766257675 has 12 divisors (see below), whose sum is σ = 150997685976. Its totient is φ = 97408150400.

The previous prime is 121766257631. The next prime is 121766257693. The reversal of 121766257675 is 576752667121.

It is not a de Polignac number, because 121766257675 - 2¹⁵ = 121766224907 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 441315 + ... + 662035.

It is an arithmetic number, because the mean of its divisors is an integer number (12583140498).

Almost surely, 2^121766257675 is an apocalyptic number.

121766257675 is a deficient number, since it is larger than the sum of its proper divisors (29231428301).

121766257675 is a wasteful number, since it uses less digits than its factorization.

121766257675 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242798 (or 242793 counting only the distinct ones).

The product of its digits is 7408800, while the sum is 55.

The spelling of 121766257675 in words is "one hundred twenty-one billion, seven hundred sixty-six million, two hundred fifty-seven thousand, six hundred seventy-five".