20310716613 has 16 divisors (see below), whose sum is σ = 29545344000. Its totient is φ = 12308490480.

The previous prime is 20310716609. The next prime is 20310716633. The reversal of 20310716613 is 31661701302.

It is not a de Polignac number, because 20310716613 - 2² = 20310716609 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20310716603) 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, 595188 + ... + 628386.

It is an arithmetic number, because the mean of its divisors is an integer number (1846584000).

Almost surely, 2^20310716613 is an apocalyptic number.

It is an amenable number.

20310716613 is a deficient number, since it is larger than the sum of its proper divisors (9234627387).

20310716613 is a wasteful number, since it uses less digits than its factorization.

20310716613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51752.

The product of its (nonzero) digits is 4536, while the sum is 30.

The spelling of 20310716613 in words is "twenty billion, three hundred ten million, seven hundred sixteen thousand, six hundred thirteen".