20144435308 has 12 divisors (see below), whose sum is σ = 35698999840. Its totient is φ = 9944721072.

The previous prime is 20144435281. The next prime is 20144435323. The reversal of 20144435308 is 80353444102.

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, 31873791 + ... + 31874422.

Almost surely, 2^20144435308 is an apocalyptic number.

It is an amenable number.

20144435308 is a deficient number, since it is larger than the sum of its proper divisors (15554564532).

20144435308 is a wasteful number, since it uses less digits than its factorization.

20144435308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63748296 (or 63748294 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 34.

The spelling of 20144435308 in words is "twenty billion, one hundred forty-four million, four hundred thirty-five thousand, three hundred eight".