20522281983 has 16 divisors (see below), whose sum is σ = 32034782976. Its totient is φ = 11440992960.

The previous prime is 20522281979. The next prime is 20522282009. The reversal of 20522281983 is 38918222502.

It is not a de Polignac number, because 20522281983 - 2² = 20522281979 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20522281903) 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, 11916841 + ... + 11918562.

It is an arithmetic number, because the mean of its divisors is an integer number (2002173936).

Almost surely, 2^20522281983 is an apocalyptic number.

20522281983 is a deficient number, since it is larger than the sum of its proper divisors (11512500993).

20522281983 is a wasteful number, since it uses less digits than its factorization.

20522281983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23835454.

The product of its (nonzero) digits is 138240, while the sum is 42.

The spelling of 20522281983 in words is "twenty billion, five hundred twenty-two million, two hundred eighty-one thousand, nine hundred eighty-three".