20712160613 has 8 divisors (see below), whose sum is σ = 22156612632. Its totient is φ = 19292829696.

The previous prime is 20712160559. The next prime is 20712160619. The reversal of 20712160613 is 31606121702.

It can be written as a sum of positive squares in 4 ways, for example, as 4605251044 + 16106909569 = 67862^2 + 126913^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 20712160613 - 2²⁸ = 20443725157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20712160619) 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, 6278570 + ... + 6281867.

It is an arithmetic number, because the mean of its divisors is an integer number (2769576579).

Almost surely, 2^20712160613 is an apocalyptic number.

It is an amenable number.

20712160613 is a deficient number, since it is larger than the sum of its proper divisors (1444452019).

20712160613 is a wasteful number, since it uses less digits than its factorization.

20712160613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12560551.

The product of its (nonzero) digits is 3024, while the sum is 29.

The spelling of 20712160613 in words is "twenty billion, seven hundred twelve million, one hundred sixty thousand, six hundred thirteen".