20956832412 has 96 divisors (see below), whose sum is σ = 52164532224. Its totient is φ = 6536505600.

The previous prime is 20956832411. The next prime is 20956832417. The reversal of 20956832412 is 21423865902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20956832411) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2238862 + ... + 2248202.

It is an arithmetic number, because the mean of its divisors is an integer number (543380544).

Almost surely, 2^20956832412 is an apocalyptic number.

It is an amenable number.

20956832412 is an abundant number, since it is smaller than the sum of its proper divisors (31207699812).

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

20956832412 is a wasteful number, since it uses less digits than its factorization.

20956832412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9579 (or 9577 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 42.

The spelling of 20956832412 in words is "twenty billion, nine hundred fifty-six million, eight hundred thirty-two thousand, four hundred twelve".