20896555190 has 24 divisors (see below), whose sum is σ = 43754828832. Its totient is φ = 7164533040.

The previous prime is 20896555189. The next prime is 20896555223. The reversal of 20896555190 is 9155569802.

It is a super-2 number, since 2×20896555190² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21322526 + ... + 21323505.

It is an arithmetic number, because the mean of its divisors is an integer number (1823117868).

Almost surely, 2^20896555190 is an apocalyptic number.

20896555190 is an abundant number, since it is smaller than the sum of its proper divisors (22858273642).

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

20896555190 is a wasteful number, since it uses less digits than its factorization.

20896555190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42646052 (or 42646045 counting only the distinct ones).

The product of its (nonzero) digits is 972000, while the sum is 50.

The spelling of 20896555190 in words is "twenty billion, eight hundred ninety-six million, five hundred fifty-five thousand, one hundred ninety".