66567734313 has 16 divisors (see below), whose sum is σ = 90235296000. Its totient is φ = 43639706880.

The previous prime is 66567734293. The next prime is 66567734323. The reversal of 66567734313 is 31343776566.

It is not a de Polignac number, because 66567734313 - 2²¹ = 66565637161 is a prime.

It is not an unprimeable number, because it can be changed into a prime (66567734323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 696048 + ... + 785886.

It is an arithmetic number, because the mean of its divisors is an integer number (5639706000).

Almost surely, 2^66567734313 is an apocalyptic number.

It is an amenable number.

66567734313 is a deficient number, since it is larger than the sum of its proper divisors (23667561687).

66567734313 is a wasteful number, since it uses less digits than its factorization.

66567734313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93952.

The product of its digits is 5715360, while the sum is 51.

The spelling of 66567734313 in words is "sixty-six billion, five hundred sixty-seven million, seven hundred thirty-four thousand, three hundred thirteen".