20204325534 has 32 divisors (see below), whose sum is σ = 40560218496. Its totient is φ = 6709548960.

The previous prime is 20204325523. The next prime is 20204325539. The reversal of 20204325534 is 43552340202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20204325539) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2871729 + ... + 2878755.

It is an arithmetic number, because the mean of its divisors is an integer number (1267506828).

Almost surely, 2^20204325534 is an apocalyptic number.

20204325534 is an abundant number, since it is smaller than the sum of its proper divisors (20355892962).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20204325534 is a wasteful number, since it uses less digits than its factorization.

20204325534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8760.

The product of its (nonzero) digits is 28800, while the sum is 30.

Adding to 20204325534 its reverse (43552340202), we get a palindrome (63756665736).

The spelling of 20204325534 in words is "twenty billion, two hundred four million, three hundred twenty-five thousand, five hundred thirty-four".