20771034936 has 32 divisors (see below), whose sum is σ = 53718195600. Its totient is φ = 6684930560.

The previous prime is 20771034883. The next prime is 20771034943. The reversal of 20771034936 is 63943017702.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14921025 + ... + 14922416.

Almost surely, 2^20771034936 is an apocalyptic number.

It is an amenable number.

20771034936 is an abundant number, since it is smaller than the sum of its proper divisors (32947160664).

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

20771034936 is a wasteful number, since it uses less digits than its factorization.

20771034936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29843479 (or 29843475 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 42.

The spelling of 20771034936 in words is "twenty billion, seven hundred seventy-one million, thirty-four thousand, nine hundred thirty-six".