20460644022 has 32 divisors (see below), whose sum is σ = 50364663552. Its totient is φ = 5396213664.

The previous prime is 20460643979. The next prime is 20460644027. The reversal of 20460644022 is 22044606402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20460644027) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 18736308 + ... + 18737399.

It is an arithmetic number, because the mean of its divisors is an integer number (1573895736).

Almost surely, 2^20460644022 is an apocalyptic number.

20460644022 is an abundant number, since it is smaller than the sum of its proper divisors (29904019530).

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

20460644022 is a wasteful number, since it uses less digits than its factorization.

20460644022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37473732.

The product of its (nonzero) digits is 18432, while the sum is 30.

The spelling of 20460644022 in words is "twenty billion, four hundred sixty million, six hundred forty-four thousand, twenty-two".