16373548909 has 4 divisors (see below), whose sum is σ = 16617930304. Its totient is φ = 16129167516.

The previous prime is 16373548903. The next prime is 16373548921. The reversal of 16373548909 is 90984537361.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 16373548909 - 2²⁵ = 16339994477 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16373548909.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16373548903) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 122190597 + ... + 122190730.

It is an arithmetic number, because the mean of its divisors is an integer number (4154482576).

Almost surely, 2^16373548909 is an apocalyptic number.

It is an amenable number.

16373548909 is a deficient number, since it is larger than the sum of its proper divisors (244381395).

16373548909 is an equidigital number, since it uses as much as digits as its factorization.

16373548909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244381394.

The product of its (nonzero) digits is 4898880, while the sum is 55.

The spelling of 16373548909 in words is "sixteen billion, three hundred seventy-three million, five hundred forty-eight thousand, nine hundred nine".