16126894085 has 4 divisors (see below), whose sum is σ = 19352272908. Its totient is φ = 12901515264.

The previous prime is 16126894067. The next prime is 16126894099. The reversal of 16126894085 is 58049862161.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 58049862161 = 106427 ⋅545443.

It can be written as a sum of positive squares in 2 ways, for example, as 4813168129 + 11313725956 = 69377^2 + 106366^2 .

It is a cyclic number.

It is not a de Polignac number, because 16126894085 - 2²⁶ = 16059785221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1612689404 + ... + 1612689413.

It is an arithmetic number, because the mean of its divisors is an integer number (4838068227).

Almost surely, 2^16126894085 is an apocalyptic number.

It is an amenable number.

16126894085 is a deficient number, since it is larger than the sum of its proper divisors (3225378823).

16126894085 is an equidigital number, since it uses as much as digits as its factorization.

16126894085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3225378822.

The product of its (nonzero) digits is 829440, while the sum is 50.

The spelling of 16126894085 in words is "sixteen billion, one hundred twenty-six million, eight hundred ninety-four thousand, eighty-five".