16255255261 has 4 divisors (see below), whose sum is σ = 18577434592. Its totient is φ = 13933075932.

The previous prime is 16255255253. The next prime is 16255255271.

16255255261 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 16255255261 - 2³ = 16255255253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16255255241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1161089655 + ... + 1161089668.

It is an arithmetic number, because the mean of its divisors is an integer number (4644358648).

Almost surely, 2^16255255261 is an apocalyptic number.

It is an amenable number.

16255255261 is a deficient number, since it is larger than the sum of its proper divisors (2322179331).

16255255261 is an equidigital number, since it uses as much as digits as its factorization.

16255255261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2322179330.

The product of its digits is 180000, while the sum is 40.

The spelling of 16255255261 in words is "sixteen billion, two hundred fifty-five million, two hundred fifty-five thousand, two hundred sixty-one".