20436333936 has 40 divisors (see below), whose sum is σ = 52799794704. Its totient is φ = 6811345920.

The previous prime is 20436333917. The next prime is 20436333943. The reversal of 20436333936 is 63933363402.

It is a congruent number.

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, 549400 + ... + 585416.

Almost surely, 2^20436333936 is an apocalyptic number.

It is an amenable number.

20436333936 is an abundant number, since it is smaller than the sum of its proper divisors (32363460768).

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

20436333936 is a wasteful number, since it uses less digits than its factorization.

20436333936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47849 (or 47843 counting only the distinct ones).

The product of its (nonzero) digits is 629856, while the sum is 42.

The spelling of 20436333936 in words is "twenty billion, four hundred thirty-six million, three hundred thirty-three thousand, nine hundred thirty-six".