16440900263 has 2 divisors, whose sum is σ = 16440900264. Its totient is φ = 16440900262.

The previous prime is 16440900239. The next prime is 16440900299. The reversal of 16440900263 is 36200904461.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16440900263 - 2⁶ = 16440900199 is a prime.

It is a super-3 number, since 3×16440900263³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16440900163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8220450131 + 8220450132.

It is an arithmetic number, because the mean of its divisors is an integer number (8220450132).

Almost surely, 2^16440900263 is an apocalyptic number.

16440900263 is a deficient number, since it is larger than the sum of its proper divisors (1).

16440900263 is an equidigital number, since it uses as much as digits as its factorization.

16440900263 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31104, while the sum is 35.

The spelling of 16440900263 in words is "sixteen billion, four hundred forty million, nine hundred thousand, two hundred sixty-three".