15999022113311 has 4 divisors (see below), whose sum is σ = 16001832416232. Its totient is φ = 15996211810392.

The previous prime is 15999022113301. The next prime is 15999022113317. The reversal of 15999022113311 is 11331122099951.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15999022113311 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 (15999022113317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1405142921 + ... + 1405154306.

It is an arithmetic number, because the mean of its divisors is an integer number (4000458104058).

Almost surely, 2^{15999022113311} is an apocalyptic number.

15999022113311 is a deficient number, since it is larger than the sum of its proper divisors (2810302921).

15999022113311 is an equidigital number, since it uses as much as digits as its factorization.

15999022113311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2810302920.

The product of its (nonzero) digits is 131220, while the sum is 47.

The spelling of 15999022113311 in words is "fifteen trillion, nine hundred ninety-nine billion, twenty-two million, one hundred thirteen thousand, three hundred eleven".