20679267855 has 16 divisors (see below), whose sum is σ = 33148000224. Its totient is φ = 11008552320.

The previous prime is 20679267841. The next prime is 20679267859. The reversal of 20679267855 is 55876297602.

It is not a de Polignac number, because 20679267855 - 2⁴ = 20679267839 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20679267795 and 20679267804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20679267859) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1266024 + ... + 1282253.

It is an arithmetic number, because the mean of its divisors is an integer number (2071750014).

Almost surely, 2^20679267855 is an apocalyptic number.

20679267855 is a deficient number, since it is larger than the sum of its proper divisors (12468732369).

20679267855 is a wasteful number, since it uses less digits than its factorization.

20679267855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2548826.

The product of its (nonzero) digits is 12700800, while the sum is 57.

The spelling of 20679267855 in words is "twenty billion, six hundred seventy-nine million, two hundred sixty-seven thousand, eight hundred fifty-five".