16200000261 has 12 divisors (see below), whose sum is σ = 23403936192. Its totient is φ = 10798183656.

The previous prime is 16200000253. The next prime is 16200000287.

It is a happy number.

16200000261 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 16200000261 - 2³ = 16200000253 is a prime.

It is a super-3 number, since 3×16200000261³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16200000241) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 93741 + ... + 202946.

It is an arithmetic number, because the mean of its divisors is an integer number (1950328016).

Almost surely, 2^16200000261 is an apocalyptic number.

It is an amenable number.

16200000261 is a deficient number, since it is larger than the sum of its proper divisors (7203935931).

16200000261 is a wasteful number, since it uses less digits than its factorization.

16200000261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302760 (or 302757 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

It can be divided in two parts, 16200000 and 261, that added together give a palindrome (16200261).

The spelling of 16200000261 in words is "sixteen billion, two hundred million, two hundred sixty-one", and thus it is an aban number.