16338533937 has 32 divisors (see below), whose sum is σ = 24083619840. Its totient is φ = 9769921920.

The previous prime is 16338533921. The next prime is 16338533951. The reversal of 16338533937 is 73933583361.

It is a happy number.

It is not a de Polignac number, because 16338533937 - 2⁴ = 16338533921 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16338533937.

It is not an unprimeable number, because it can be changed into a prime (16338533917) 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, 1424608 + ... + 1436030.

It is an arithmetic number, because the mean of its divisors is an integer number (752613120).

Almost surely, 2^16338533937 is an apocalyptic number.

It is an amenable number.

16338533937 is a deficient number, since it is larger than the sum of its proper divisors (7745085903).

16338533937 is a wasteful number, since it uses less digits than its factorization.

16338533937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12013.

The product of its digits is 3674160, while the sum is 51.

The spelling of 16338533937 in words is "sixteen billion, three hundred thirty-eight million, five hundred thirty-three thousand, nine hundred thirty-seven".