20901801159 has 12 divisors (see below), whose sum is σ = 30334580952. Its totient is φ = 13868492400.

The previous prime is 20901801101. The next prime is 20901801163. The reversal of 20901801159 is 95110810902.

It is not a de Polignac number, because 20901801159 - 2⁷ = 20901801031 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20901801199) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 5501472 + ... + 5505269.

It is an arithmetic number, because the mean of its divisors is an integer number (2527881746).

Almost surely, 2^20901801159 is an apocalyptic number.

20901801159 is a deficient number, since it is larger than the sum of its proper divisors (9432779793).

20901801159 is a wasteful number, since it uses less digits than its factorization.

20901801159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11006958 (or 11006955 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 36.

The spelling of 20901801159 in words is "twenty billion, nine hundred one million, eight hundred one thousand, one hundred fifty-nine".