20533004104 has 8 divisors (see below), whose sum is σ = 38499382710. Its totient is φ = 10266502048.

The previous prime is 20533004081. The next prime is 20533004119. The reversal of 20533004104 is 40140033502.

It can be written as a sum of positive squares in only one way, i.e., 17463622500 + 3069381604 = 132150^2 + 55402^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1283312749 + ... + 1283312764.

Almost surely, 2^20533004104 is an apocalyptic number.

It is an amenable number.

20533004104 is a deficient number, since it is larger than the sum of its proper divisors (17966378606).

20533004104 is a wasteful number, since it uses less digits than its factorization.

20533004104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2566625519 (or 2566625515 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

Adding to 20533004104 its reverse (40140033502), we get a palindrome (60673037606).

The spelling of 20533004104 in words is "twenty billion, five hundred thirty-three million, four thousand, one hundred four".