76660668121 has 8 divisors (see below), whose sum is σ = 80022346560. Its totient is φ = 73301373552.

The previous prime is 76660668109. The next prime is 76660668127. The reversal of 76660668121 is 12186606667.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 76660668121 - 2⁵ = 76660668089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (76660668127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 530086 + ... + 659023.

It is an arithmetic number, because the mean of its divisors is an integer number (10002793320).

Almost surely, 2^76660668121 is an apocalyptic number.

It is an amenable number.

76660668121 is a deficient number, since it is larger than the sum of its proper divisors (3361678439).

76660668121 is a wasteful number, since it uses less digits than its factorization.

76660668121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1191935.

The product of its (nonzero) digits is 870912, while the sum is 49.

The spelling of 76660668121 in words is "seventy-six billion, six hundred sixty million, six hundred sixty-eight thousand, one hundred twenty-one".