20113568611 has 8 divisors (see below), whose sum is σ = 20139300720. Its totient is φ = 20087854848.

The previous prime is 20113568603. The next prime is 20113568621. The reversal of 20113568611 is 11686531102.

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 20113568611 - 2³ = 20113568603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20113568621) 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, 5093940 + ... + 5097886.

It is an arithmetic number, because the mean of its divisors is an integer number (2517412590).

Almost surely, 2^20113568611 is an apocalyptic number.

20113568611 is a deficient number, since it is larger than the sum of its proper divisors (25732109).

20113568611 is a wasteful number, since it uses less digits than its factorization.

20113568611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9173.

The product of its (nonzero) digits is 8640, while the sum is 34.

The spelling of 20113568611 in words is "twenty billion, one hundred thirteen million, five hundred sixty-eight thousand, six hundred eleven".