16111254499 has 2 divisors, whose sum is σ = 16111254500. Its totient is φ = 16111254498.

The previous prime is 16111254487. The next prime is 16111254619. The reversal of 16111254499 is 99445211161.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16111254499 - 2⁷ = 16111254371 is a prime.

It is not a weakly prime, because it can be changed into another prime (16111254799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8055627249 + 8055627250.

It is an arithmetic number, because the mean of its divisors is an integer number (8055627250).

Almost surely, 2^16111254499 is an apocalyptic number.

16111254499 is a deficient number, since it is larger than the sum of its proper divisors (1).

16111254499 is an equidigital number, since it uses as much as digits as its factorization.

16111254499 is an evil number, because the sum of its binary digits is even.

The product of its digits is 77760, while the sum is 43.

The spelling of 16111254499 in words is "sixteen billion, one hundred eleven million, two hundred fifty-four thousand, four hundred ninety-nine".