20534316804 has 135 divisors (see below), whose sum is σ = 56790300567. Its totient is φ = 6469044912.

The previous prime is 20534316799. The next prime is 20534316833. The reversal of 20534316804 is 40861343502.

The square root of 20534316804 is 143298.

It is a perfect power (a square), and thus also a powerful number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 49007707 + ... + 49008125.

Almost surely, 2^20534316804 is an apocalyptic number.

20534316804 is the 143298-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20534316804

20534316804 is an abundant number, since it is smaller than the sum of its proper divisors (36255983763).

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

20534316804 is an equidigital number, since it uses as much as digits as its factorization.

20534316804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 892 (or 443 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

Multiplying 20534316804 by its sum of digits (36), we get a square (739235404944 = 859788²).

20534316804 divided by its sum of digits (36) gives a square (570397689 = 23883²).

The spelling of 20534316804 in words is "twenty billion, five hundred thirty-four million, three hundred sixteen thousand, eight hundred four".