20802981201 has 8 divisors (see below), whose sum is σ = 27741571104. Its totient is φ = 13866522720.

The previous prime is 20802981167. The next prime is 20802981229. The reversal of 20802981201 is 10218920802.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20802981201 - 2¹⁴ = 20802964817 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20802981271) 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 7 ways as a sum of consecutive naturals, for example, 509940 + ... + 549221.

It is an arithmetic number, because the mean of its divisors is an integer number (3467696388).

Almost surely, 2^20802981201 is an apocalyptic number.

It is an amenable number.

20802981201 is a deficient number, since it is larger than the sum of its proper divisors (6938589903).

20802981201 is a wasteful number, since it uses less digits than its factorization.

20802981201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1065711.

The product of its (nonzero) digits is 4608, while the sum is 33.

The spelling of 20802981201 in words is "twenty billion, eight hundred two million, nine hundred eighty-one thousand, two hundred one".