16523200261 has 8 divisors (see below), whose sum is σ = 17481134880. Its totient is φ = 15574094928.

The previous prime is 16523200259. The next prime is 16523200289. The reversal of 16523200261 is 16200232561.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16523200261 - 2¹ = 16523200259 is a prime.

It is a super-3 number, since 3×16523200261³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16523210261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2203471 + ... + 2210956.

It is an arithmetic number, because the mean of its divisors is an integer number (2185141860).

Almost surely, 2^16523200261 is an apocalyptic number.

It is an amenable number.

16523200261 is a deficient number, since it is larger than the sum of its proper divisors (957934619).

16523200261 is a wasteful number, since it uses less digits than its factorization.

16523200261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4414643.

The product of its (nonzero) digits is 4320, while the sum is 28.

The spelling of 16523200261 in words is "sixteen billion, five hundred twenty-three million, two hundred thousand, two hundred sixty-one".