20204355051 has 48 divisors (see below), whose sum is σ = 30178878912. Its totient is φ = 13020134400.

The previous prime is 20204355049. The next prime is 20204355053. The reversal of 20204355051 is 15055340202.

It is a happy number.

20204355051 is a `hidden beast` number, since 2 + 0 + 20 + 43 + 550 + 51 = 666.

It is an interprime number because it is at equal distance from previous prime (20204355049) and next prime (20204355053).

It is not a de Polignac number, because 20204355051 - 2¹ = 20204355049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20204355053) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8441911 + ... + 8444303.

It is an arithmetic number, because the mean of its divisors is an integer number (628726644).

Almost surely, 2^20204355051 is an apocalyptic number.

20204355051 is a deficient number, since it is larger than the sum of its proper divisors (9974523861).

20204355051 is a wasteful number, since it uses less digits than its factorization.

20204355051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2724 (or 2721 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

Adding to 20204355051 its reverse (15055340202), we get a palindrome (35259695253).

The spelling of 20204355051 in words is "twenty billion, two hundred four million, three hundred fifty-five thousand, fifty-one".