16192258081 has 4 divisors (see below), whose sum is σ = 16193536000. Its totient is φ = 16190980164.

The previous prime is 16192258079. The next prime is 16192258133. The reversal of 16192258081 is 18085229161.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 18085229161 = 15439 ⋅1171399.

It is a cyclic number.

It is not a de Polignac number, because 16192258081 - 2¹ = 16192258079 is a prime.

It is a super-2 number, since 2×16192258081² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16192258021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 619761 + ... + 645358.

It is an arithmetic number, because the mean of its divisors is an integer number (4048384000).

Almost surely, 2^16192258081 is an apocalyptic number.

It is an amenable number.

16192258081 is a deficient number, since it is larger than the sum of its proper divisors (1277919).

16192258081 is a wasteful number, since it uses less digits than its factorization.

16192258081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1277918.

The product of its (nonzero) digits is 69120, while the sum is 43.

The spelling of 16192258081 in words is "sixteen billion, one hundred ninety-two million, two hundred fifty-eight thousand, eighty-one".