16085991311 has 16 divisors (see below), whose sum is σ = 18362127168. Its totient is φ = 13960128000.

The previous prime is 16085991301. The next prime is 16085991329. The reversal of 16085991311 is 11319958061.

It is not a de Polignac number, because 16085991311 - 2²⁶ = 16018882447 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 (16085991301) 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, 169286 + ... + 246636.

It is an arithmetic number, because the mean of its divisors is an integer number (1147632948).

Almost surely, 2^16085991311 is an apocalyptic number.

16085991311 is a deficient number, since it is larger than the sum of its proper divisors (2276135857).

16085991311 is a wasteful number, since it uses less digits than its factorization.

16085991311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78322.

The product of its (nonzero) digits is 58320, while the sum is 44.

The spelling of 16085991311 in words is "sixteen billion, eighty-five million, nine hundred ninety-one thousand, three hundred eleven".