20605150601 has 32 divisors (see below), whose sum is σ = 24285961728. Its totient is φ = 17119641600.

The previous prime is 20605150597. The next prime is 20605150603. The reversal of 20605150601 is 10605150602.

It is a cyclic number.

It is not a de Polignac number, because 20605150601 - 2² = 20605150597 is a prime.

It is a super-2 number, since 2×20605150601² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20605150603) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7483241 + ... + 7485993.

It is an arithmetic number, because the mean of its divisors is an integer number (758936304).

Almost surely, 2^20605150601 is an apocalyptic number.

It is an amenable number.

20605150601 is a deficient number, since it is larger than the sum of its proper divisors (3680811127).

20605150601 is a wasteful number, since it uses less digits than its factorization.

20605150601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3081.

The product of its (nonzero) digits is 1800, while the sum is 26.

Subtracting from 20605150601 its reverse (10605150602), we obtain a palindrome (9999999999).

It can be divided in two parts, 206051 and 50601, that added together give a palindrome (256652).

The spelling of 20605150601 in words is "twenty billion, six hundred five million, one hundred fifty thousand, six hundred one".