20541530601 has 12 divisors (see below), whose sum is σ = 29804156928. Its totient is φ = 13632942744.

The previous prime is 20541530579. The next prime is 20541530701. The reversal of 20541530601 is 10603514502.

20541530601 is a `hidden beast` number, since 2 + 0 + 5 + 4 + 1 + 53 + 0 + 601 = 666.

It is not a de Polignac number, because 20541530601 - 2²² = 20537336297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20541530701) 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, 5115465 + ... + 5119478.

It is an arithmetic number, because the mean of its divisors is an integer number (2483679744).

Almost surely, 2^20541530601 is an apocalyptic number.

It is an amenable number.

20541530601 is a deficient number, since it is larger than the sum of its proper divisors (9262626327).

20541530601 is a wasteful number, since it uses less digits than its factorization.

20541530601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10235172 (or 10235169 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The spelling of 20541530601 in words is "twenty billion, five hundred forty-one million, five hundred thirty thousand, six hundred one".