16266261 has 16 divisors (see below), whose sum is σ = 24906240. Its totient is φ = 9339120.

The previous prime is 16266253. The next prime is 16266269.

16266261 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (16266253) and next prime (16266269).

It is not a de Polignac number, because 16266261 - 2³ = 16266253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16266269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12345 + ... + 13598.

It is an arithmetic number, because the mean of its divisors is an integer number (1556640).

Almost surely, 2^16266261 is an apocalyptic number.

16266261 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

16266261 is a deficient number, since it is larger than the sum of its proper divisors (8639979).

16266261 is a wasteful number, since it uses less digits than its factorization.

16266261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25976.

The product of its digits is 5184, while the sum is 30.

The square root of 16266261 is about 4033.1452986472. The cubic root of 16266261 is about 253.3743098922.

It can be divided in two parts, 1626 and 6261, that added together give a palindrome (7887).

The spelling of 16266261 in words is "sixteen million, two hundred sixty-six thousand, two hundred sixty-one".