20522004000 has 96 divisors (see below), whose sum is σ = 67230124416. Its totient is φ = 5472531200.

The previous prime is 20522003969. The next prime is 20522004007. The reversal of 20522004000 is 40022502.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (20522004007) 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, 843084 + ... + 867083.

It is an arithmetic number, because the mean of its divisors is an integer number (700313796).

Almost surely, 2^20522004000 is an apocalyptic number.

20522004000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20522004000 is an abundant number, since it is smaller than the sum of its proper divisors (46708120416).

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

20522004000 is a wasteful number, since it uses less digits than its factorization.

20522004000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1710195 (or 1710177 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 15.

Adding to 20522004000 its reverse (40022502), we get a palindrome (20562026502).

The spelling of 20522004000 in words is "twenty billion, five hundred twenty-two million, four thousand".