16299196581 has 16 divisors (see below), whose sum is σ = 22006275200. Its totient is φ = 10729730880.

The previous prime is 16299196577. The next prime is 16299196591. The reversal of 16299196581 is 18569199261.

It is not a de Polignac number, because 16299196581 - 2² = 16299196577 is a prime.

It is a super-2 number, since 2×16299196581² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16299196591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32271 + ... + 183411.

It is an arithmetic number, because the mean of its divisors is an integer number (1375392200).

Almost surely, 2^16299196581 is an apocalyptic number.

It is an amenable number.

16299196581 is a deficient number, since it is larger than the sum of its proper divisors (5707078619).

16299196581 is a wasteful number, since it uses less digits than its factorization.

16299196581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151596.

The product of its digits is 2099520, while the sum is 57.

The spelling of 16299196581 in words is "sixteen billion, two hundred ninety-nine million, one hundred ninety-six thousand, five hundred eighty-one".