20605150053 has 6 divisors (see below), whose sum is σ = 29762994534. Its totient is φ = 13736766696.

The previous prime is 20605150003. The next prime is 20605150109. The reversal of 20605150053 is 35005150602.

20605150053 is a `hidden beast` number, since 2 + 0 + 60 + 51 + 500 + 53 = 666.

It can be written as a sum of positive squares in only one way, i.e., 10812464289 + 9792685764 = 103983^2 + 98958^2 .

It is not a de Polignac number, because 20605150053 - 2³⁰ = 19531408229 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20605149999 and 20605150026.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20605150003) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1144730550 + ... + 1144730567.

It is an arithmetic number, because the mean of its divisors is an integer number (4960499089).

Almost surely, 2^20605150053 is an apocalyptic number.

It is an amenable number.

20605150053 is a deficient number, since it is larger than the sum of its proper divisors (9157844481).

20605150053 is a wasteful number, since it uses less digits than its factorization.

20605150053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2289461123 (or 2289461120 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

The spelling of 20605150053 in words is "twenty billion, six hundred five million, one hundred fifty thousand, fifty-three".