66674882121 has 8 divisors (see below), whose sum is σ = 88901766624. Its totient is φ = 44448959520.

The previous prime is 66674882101. The next prime is 66674882177. The reversal of 66674882121 is 12128847666.

66674882121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 66674882121 - 2²³ = 66666493513 is a prime.

It is not an unprimeable number, because it can be changed into a prime (66674882101) 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, 59220 + ... + 369941.

It is an arithmetic number, because the mean of its divisors is an integer number (11112720828).

Almost surely, 2^66674882121 is an apocalyptic number.

It is an amenable number.

66674882121 is a deficient number, since it is larger than the sum of its proper divisors (22226884503).

66674882121 is a wasteful number, since it uses less digits than its factorization.

66674882121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 480951.

The product of its digits is 1548288, while the sum is 51.

The spelling of 66674882121 in words is "sixty-six billion, six hundred seventy-four million, eight hundred eighty-two thousand, one hundred twenty-one".