16161244255 has 16 divisors (see below), whose sum is σ = 20921925024. Its totient is φ = 11913528960.

The previous prime is 16161244223. The next prime is 16161244273. The reversal of 16161244255 is 55244216161.

It is not a de Polignac number, because 16161244255 - 2⁵ = 16161244223 is a prime.

It is a super-2 number, since 2×16161244255² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 180604 + ... + 254833.

It is an arithmetic number, because the mean of its divisors is an integer number (1307620314).

Almost surely, 2^16161244255 is an apocalyptic number.

16161244255 is a deficient number, since it is larger than the sum of its proper divisors (4760680769).

16161244255 is a wasteful number, since it uses less digits than its factorization.

16161244255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436026.

The product of its digits is 57600, while the sum is 37.

The spelling of 16161244255 in words is "sixteen billion, one hundred sixty-one million, two hundred forty-four thousand, two hundred fifty-five".