20256386802 has 8 divisors (see below), whose sum is σ = 40512773616. Its totient is φ = 6752128932.

The previous prime is 20256386783. The next prime is 20256386803. The reversal of 20256386802 is 20868365202.

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

20256386802 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (20256386803) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1688032228 + ... + 1688032239.

It is an arithmetic number, because the mean of its divisors is an integer number (5064096702).

Almost surely, 2^20256386802 is an apocalyptic number.

20256386802 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20256386802 is a wasteful number, since it uses less digits than its factorization.

20256386802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3376064472.

The product of its (nonzero) digits is 276480, while the sum is 42.

The spelling of 20256386802 in words is "twenty billion, two hundred fifty-six million, three hundred eighty-six thousand, eight hundred two".