20831466799 has 16 divisors (see below), whose sum is σ = 24478261920. Its totient is φ = 17477429760.

The previous prime is 20831466797. The next prime is 20831466809. The reversal of 20831466799 is 99766413802.

It is a cyclic number.

It is not a de Polignac number, because 20831466799 - 2¹ = 20831466797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20831466797) 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, 893539 + ... + 916555.

It is an arithmetic number, because the mean of its divisors is an integer number (1529891370).

Almost surely, 2^20831466799 is an apocalyptic number.

20831466799 is a deficient number, since it is larger than the sum of its proper divisors (3646795121).

20831466799 is a wasteful number, since it uses less digits than its factorization.

20831466799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29370.

The product of its (nonzero) digits is 3919104, while the sum is 55.

The spelling of 20831466799 in words is "twenty billion, eight hundred thirty-one million, four hundred sixty-six thousand, seven hundred ninety-nine".