16303633361 has 4 divisors (see below), whose sum is σ = 16305426852. Its totient is φ = 16301839872.

The previous prime is 16303633331. The next prime is 16303633387. The reversal of 16303633361 is 16333630361.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3638381761 + 12665251600 = 60319^2 + 112540^2 .

It is a cyclic number.

It is not a de Polignac number, because 16303633361 - 2²⁶ = 16236524497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16303633331) 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, 883040 + ... + 901313.

It is an arithmetic number, because the mean of its divisors is an integer number (4076356713).

Almost surely, 2^16303633361 is an apocalyptic number.

It is an amenable number.

16303633361 is a deficient number, since it is larger than the sum of its proper divisors (1793491).

16303633361 is an equidigital number, since it uses as much as digits as its factorization.

16303633361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1793490.

The product of its (nonzero) digits is 52488, while the sum is 35.

The spelling of 16303633361 in words is "sixteen billion, three hundred three million, six hundred thirty-three thousand, three hundred sixty-one".