20736743750144 has 40 divisors (see below), whose sum is σ = 41436546250308. Its totient is φ = 10367480954880.

The previous prime is 20736743750117. The next prime is 20736743750153. The reversal of 20736743750144 is 44105734763702.

It can be written as a sum of positive squares in 2 ways, for example, as 19400148793600 + 1336594956544 = 4404560^2 + 1156112^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4244384 + ... + 7712864.

Almost surely, 2^{20736743750144} is an apocalyptic number.

It is an amenable number.

20736743750144 is a deficient number, since it is larger than the sum of its proper divisors (20699802500164).

20736743750144 is an equidigital number, since it uses as much as digits as its factorization.

20736743750144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3480176 (or 3480160 counting only the distinct ones).

The product of its (nonzero) digits is 11854080, while the sum is 53.

The spelling of 20736743750144 in words is "twenty trillion, seven hundred thirty-six billion, seven hundred forty-three million, seven hundred fifty thousand, one hundred forty-four".