59684666681 has 4 divisors (see below), whose sum is σ = 59704168164. Its totient is φ = 59665165200.

The previous prime is 59684666677. The next prime is 59684666749. The reversal of 59684666681 is 18666648695.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 41129868025 + 18554798656 = 202805^2 + 136216^2 .

It is a cyclic number.

It is not a de Polignac number, because 59684666681 - 2² = 59684666677 is a prime.

It is a super-2 number, since 2×59684666681² (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 (59684666651) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9746150 + ... + 9752271.

It is an arithmetic number, because the mean of its divisors is an integer number (14926042041).

Almost surely, 2^59684666681 is an apocalyptic number.

It is an amenable number.

59684666681 is a deficient number, since it is larger than the sum of its proper divisors (19501483).

59684666681 is a wasteful number, since it uses less digits than its factorization.

59684666681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19501482.

The product of its digits is 89579520, while the sum is 65.

The spelling of 59684666681 in words is "fifty-nine billion, six hundred eighty-four million, six hundred sixty-six thousand, six hundred eighty-one".