20700432888 has 32 divisors (see below), whose sum is σ = 52954598400. Its totient is φ = 6739675488.

The previous prime is 20700432859. The next prime is 20700432917. The reversal of 20700432888 is 88823400702.

It is an interprime number because it is at equal distance from previous prime (20700432859) and next prime (20700432917).

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 7 ways as a sum of consecutive naturals, for example, 10028248 + ... + 10030311.

It is an arithmetic number, because the mean of its divisors is an integer number (1654831200).

Almost surely, 2^20700432888 is an apocalyptic number.

It is an amenable number.

20700432888 is an abundant number, since it is smaller than the sum of its proper divisors (32254165512).

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

20700432888 is a wasteful number, since it uses less digits than its factorization.

20700432888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20058611 (or 20058607 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 42.

The spelling of 20700432888 in words is "twenty billion, seven hundred million, four hundred thirty-two thousand, eight hundred eighty-eight".