66051692339 has 8 divisors (see below), whose sum is σ = 69940318320. Its totient is φ = 62163425536.

The previous prime is 66051692177. The next prime is 66051692341. The reversal of 66051692339 is 93329615066.

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 66051692339 - 2²⁴ = 66034915123 is a prime.

It is a super-2 number, since 2×66051692339² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66051682339) 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, 350567 + ... + 504975.

It is an arithmetic number, because the mean of its divisors is an integer number (8742539790).

Almost surely, 2^66051692339 is an apocalyptic number.

66051692339 is a deficient number, since it is larger than the sum of its proper divisors (3888625981).

66051692339 is a wasteful number, since it uses less digits than its factorization.

66051692339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179589.

The product of its (nonzero) digits is 1574640, while the sum is 50.

The spelling of 66051692339 in words is "sixty-six billion, fifty-one million, six hundred ninety-two thousand, three hundred thirty-nine".