16256222265261 has 48 divisors (see below), whose sum is σ = 23964706846080. Its totient is φ = 9794333577600.

The previous prime is 16256222265211. The next prime is 16256222265281.

16256222265261 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 16256222265261 - 2⁷ = 16256222265133 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16256222265261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16256222265211) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 190693195 + ... + 190778423.

It is an arithmetic number, because the mean of its divisors is an integer number (499264725960).

Almost surely, 2^{16256222265261} is an apocalyptic number.

16256222265261 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

16256222265261 is a deficient number, since it is larger than the sum of its proper divisors (7708484580819).

16256222265261 is a wasteful number, since it uses less digits than its factorization.

16256222265261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88338 (or 88327 counting only the distinct ones).

The product of its digits is 2073600, while the sum is 48.

The spelling of 16256222265261 in words is "sixteen trillion, two hundred fifty-six billion, two hundred twenty-two million, two hundred sixty-five thousand, two hundred sixty-one".