16192991575 has 6 divisors (see below), whose sum is σ = 20079309584. Its totient is φ = 12954393240.

The previous prime is 16192991539. The next prime is 16192991597. The reversal of 16192991575 is 57519929161.

It is not a de Polignac number, because 16192991575 - 2⁹ = 16192991063 is a prime.

It is a super-2 number, since 2×16192991575² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 323859807 + ... + 323859856.

Almost surely, 2^16192991575 is an apocalyptic number.

16192991575 is a deficient number, since it is larger than the sum of its proper divisors (3886318009).

16192991575 is an equidigital number, since it uses as much as digits as its factorization.

16192991575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 647719673 (or 647719668 counting only the distinct ones).

The product of its digits is 1530900, while the sum is 55.

The spelling of 16192991575 in words is "sixteen billion, one hundred ninety-two million, nine hundred ninety-one thousand, five hundred seventy-five".