66747362613 has 8 divisors (see below), whose sum is σ = 89094608928. Its totient is φ = 44449179024.

The previous prime is 66747362603. The next prime is 66747362639. The reversal of 66747362613 is 31626374766.

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

It is not a de Polignac number, because 66747362613 - 2⁵ = 66747362581 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66747362603) 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, 12262506 + ... + 12267947.

It is an arithmetic number, because the mean of its divisors is an integer number (11136826116).

Almost surely, 2^66747362613 is an apocalyptic number.

It is an amenable number.

66747362613 is a deficient number, since it is larger than the sum of its proper divisors (22347246315).

66747362613 is a wasteful number, since it uses less digits than its factorization.

66747362613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24531363.

The product of its digits is 4572288, while the sum is 51.

The spelling of 66747362613 in words is "sixty-six billion, seven hundred forty-seven million, three hundred sixty-two thousand, six hundred thirteen".