20144344464722 has 16 divisors (see below), whose sum is σ = 31806947313600. Its totient is φ = 9542031614640.

The previous prime is 20144344464697. The next prime is 20144344464731. The reversal of 20144344464722 is 22746444344102.

It is a happy number.

It is a super-2 number, since 2×20144344464722² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25214072 + ... + 26000732.

It is an arithmetic number, because the mean of its divisors is an integer number (1987934207100).

Almost surely, 2^{20144344464722} is an apocalyptic number.

20144344464722 is a deficient number, since it is larger than the sum of its proper divisors (11662602848878).

20144344464722 is a wasteful number, since it uses less digits than its factorization.

20144344464722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1460561.

The product of its (nonzero) digits is 4128768, while the sum is 47.

The spelling of 20144344464722 in words is "twenty trillion, one hundred forty-four billion, three hundred forty-four million, four hundred sixty-four thousand, seven hundred twenty-two".