16238483261 has 24 divisors (see below), whose sum is σ = 21967905792. Its totient is φ = 11680020000.

The previous prime is 16238483251. The next prime is 16238483273.

16238483261 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 16238483261 - 2³⁰ = 15164741437 is a prime.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16238483251) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 726365 + ... + 748386.

It is an arithmetic number, because the mean of its divisors is an integer number (915329408).

Almost surely, 2^16238483261 is an apocalyptic number.

16238483261 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

16238483261 is a deficient number, since it is larger than the sum of its proper divisors (5729422531).

16238483261 is a wasteful number, since it uses less digits than its factorization.

16238483261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1474793 (or 1474782 counting only the distinct ones).

The product of its digits is 331776, while the sum is 44.

The spelling of 16238483261 in words is "sixteen billion, two hundred thirty-eight million, four hundred eighty-three thousand, two hundred sixty-one".