20604550113 has 24 divisors (see below), whose sum is σ = 34018358400. Its totient is φ = 11772471744.

The previous prime is 20604550073. The next prime is 20604550157. The reversal of 20604550113 is 31105540602.

20604550113 is a `hidden beast` number, since 2 + 0 + 604 + 5 + 50 + 1 + 1 + 3 = 666.

It is not a de Polignac number, because 20604550113 - 2¹³ = 20604541921 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20604550313) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 598708 + ... + 632186.

It is an arithmetic number, because the mean of its divisors is an integer number (1417431600).

Almost surely, 2^20604550113 is an apocalyptic number.

It is an amenable number.

20604550113 is a deficient number, since it is larger than the sum of its proper divisors (13413808287).

20604550113 is a wasteful number, since it uses less digits than its factorization.

20604550113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43261 (or 43258 counting only the distinct ones).

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

The spelling of 20604550113 in words is "twenty billion, six hundred four million, five hundred fifty thousand, one hundred thirteen".