20377234144 has 24 divisors (see below), whose sum is σ = 42477544368. Its totient is φ = 9589286400.

The previous prime is 20377234139. The next prime is 20377234153. The reversal of 20377234144 is 44143277302.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18728532 + ... + 18729619.

It is an arithmetic number, because the mean of its divisors is an integer number (1769897682).

Almost surely, 2^20377234144 is an apocalyptic number.

It is an amenable number.

20377234144 is an abundant number, since it is smaller than the sum of its proper divisors (22100310224).

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

20377234144 is a wasteful number, since it uses less digits than its factorization.

20377234144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37458178 (or 37458170 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 37.

The spelling of 20377234144 in words is "twenty billion, three hundred seventy-seven million, two hundred thirty-four thousand, one hundred forty-four".