16031238340 has 96 divisors (see below), whose sum is σ = 38498664960. Its totient is φ = 5554968576.

The previous prime is 16031238337. The next prime is 16031238347. The reversal of 16031238340 is 4383213061.

It is not an unprimeable number, because it can be changed into a prime (16031238347) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1581729 + ... + 1591831.

It is an arithmetic number, because the mean of its divisors is an integer number (401027760).

Almost surely, 2^16031238340 is an apocalyptic number.

16031238340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16031238340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19249332480).

16031238340 is an abundant number, since it is smaller than the sum of its proper divisors (22467426620).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16031238340 is a wasteful number, since it uses less digits than its factorization.

16031238340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10501 (or 10499 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 31.

The spelling of 16031238340 in words is "sixteen billion, thirty-one million, two hundred thirty-eight thousand, three hundred forty".