20357226368 has 32 divisors (see below), whose sum is σ = 42941028960. Its totient is φ = 9579870208.

The previous prime is 20357226343. The next prime is 20357226371. The reversal of 20357226368 is 86362275302.

It is a tau number, because it is divible by the number of its divisors (32).

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 3 ways as a sum of consecutive naturals, for example, 4675496 + ... + 4679847.

It is an arithmetic number, because the mean of its divisors is an integer number (1341907155).

Almost surely, 2^20357226368 is an apocalyptic number.

It is an amenable number.

20357226368 is an abundant number, since it is smaller than the sum of its proper divisors (22583802592).

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

20357226368 is an equidigital number, since it uses as much as digits as its factorization.

20357226368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9355374 (or 9355362 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 44.

The spelling of 20357226368 in words is "twenty billion, three hundred fifty-seven million, two hundred twenty-six thousand, three hundred sixty-eight".