66413137479 has 8 divisors (see below), whose sum is σ = 95362453872. Its totient is φ = 40869623040.

The previous prime is 66413137471. The next prime is 66413137547. The reversal of 66413137479 is 97473131466.

66413137479 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 66413137479 - 2³ = 66413137471 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66413137471) 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, 851450442 + ... + 851450519.

It is an arithmetic number, because the mean of its divisors is an integer number (11920306734).

Almost surely, 2^66413137479 is an apocalyptic number.

66413137479 is a deficient number, since it is larger than the sum of its proper divisors (28949316393).

66413137479 is a wasteful number, since it uses less digits than its factorization.

66413137479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1702900977.

The product of its digits is 2286144, while the sum is 51.

The spelling of 66413137479 in words is "sixty-six billion, four hundred thirteen million, one hundred thirty-seven thousand, four hundred seventy-nine".