20826251101 has 8 divisors (see below), whose sum is σ = 21991531680. Its totient is φ = 19667886768.

The previous prime is 20826251093. The next prime is 20826251129. The reversal of 20826251101 is 10115262802.

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

It is a cyclic number.

It is not a de Polignac number, because 20826251101 - 2³ = 20826251093 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20826251101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20826261101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1722871 + ... + 1734916.

It is an arithmetic number, because the mean of its divisors is an integer number (2748941460).

Almost surely, 2^20826251101 is an apocalyptic number.

It is an amenable number.

20826251101 is a deficient number, since it is larger than the sum of its proper divisors (1165280579).

20826251101 is a wasteful number, since it uses less digits than its factorization.

20826251101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3458123.

The product of its (nonzero) digits is 1920, while the sum is 28.

The spelling of 20826251101 in words is "twenty billion, eight hundred twenty-six million, two hundred fifty-one thousand, one hundred one".