20605270113 has 12 divisors (see below), whose sum is σ = 29781640980. Its totient is φ = 13728320736.

The previous prime is 20605270109. The next prime is 20605270151. The reversal of 20605270113 is 31107250602.

It is a happy number.

20605270113 is a `hidden beast` number, since 20 + 6 + 0 + 527 + 0 + 113 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 10194537024 + 10410733089 = 100968^2 + 102033^2 .

It is not a de Polignac number, because 20605270113 - 2² = 20605270109 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20605270313) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 695178 + ... + 724211.

It is an arithmetic number, because the mean of its divisors is an integer number (2481803415).

Almost surely, 2^20605270113 is an apocalyptic number.

It is an amenable number.

20605270113 is a deficient number, since it is larger than the sum of its proper divisors (9176370867).

20605270113 is a wasteful number, since it uses less digits than its factorization.

20605270113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1421008 (or 1421005 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The spelling of 20605270113 in words is "twenty billion, six hundred five million, two hundred seventy thousand, one hundred thirteen".