20112564460399 has 8 divisors (see below), whose sum is σ = 20806643482560. Its totient is φ = 19418521592736.

The previous prime is 20112564460379. The next prime is 20112564460403. The reversal of 20112564460399 is 99306446521102.

It is a happy number.

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 20112564460399 - 2³¹ = 20110416976751 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 (20112564460379) 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, 7904424 + ... + 10134349.

It is an arithmetic number, because the mean of its divisors is an integer number (2600830435320).

Almost surely, 2^{20112564460399} is an apocalyptic number.

20112564460399 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

20112564460399 is a deficient number, since it is larger than the sum of its proper divisors (694079022161).

20112564460399 is a wasteful number, since it uses less digits than its factorization.

20112564460399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18077249.

The product of its (nonzero) digits is 2799360, while the sum is 52.

The spelling of 20112564460399 in words is "twenty trillion, one hundred twelve billion, five hundred sixty-four million, four hundred sixty thousand, three hundred ninety-nine".