121660767 has 6 divisors (see below), whose sum is σ = 175732232. Its totient is φ = 81107172.

The previous prime is 121660757. The next prime is 121660801. The reversal of 121660767 is 767066121.

It is not a de Polignac number, because 121660767 - 2⁶ = 121660703 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121660727) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6758923 + ... + 6758940.

Almost surely, 2^121660767 is an apocalyptic number.

121660767 is a deficient number, since it is larger than the sum of its proper divisors (54071465).

121660767 is a wasteful number, since it uses less digits than its factorization.

121660767 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13517869 (or 13517866 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

The square root of 121660767 is about 11029.9939709866. The cubic root of 121660767 is about 495.5074441146.

The spelling of 121660767 in words is "one hundred twenty-one million, six hundred sixty thousand, seven hundred sixty-seven".