16277855855 has 4 divisors (see below), whose sum is σ = 19533427032. Its totient is φ = 13022284680.

The previous prime is 16277855819. The next prime is 16277855879. The reversal of 16277855855 is 55855877261.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55855877261 = 22031 ⋅2535331.

It is not a de Polignac number, because 16277855855 - 2¹⁴ = 16277839471 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16277855794 and 16277855803.

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, 1627785581 + ... + 1627785590.

It is an arithmetic number, because the mean of its divisors is an integer number (4883356758).

Almost surely, 2^16277855855 is an apocalyptic number.

16277855855 is a deficient number, since it is larger than the sum of its proper divisors (3255571177).

16277855855 is an equidigital number, since it uses as much as digits as its factorization.

16277855855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3255571176.

The product of its digits is 23520000, while the sum is 59.

The spelling of 16277855855 in words is "sixteen billion, two hundred seventy-seven million, eight hundred fifty-five thousand, eight hundred fifty-five".