201044400999 has 32 divisors (see below), whose sum is σ = 301342992384. Its totient is φ = 118296288000.

The previous prime is 201044400943. The next prime is 201044401013. The reversal of 201044400999 is 999004440102.

It is not a de Polignac number, because 201044400999 - 2⁷ = 201044400871 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 201044400999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201044400299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2441499 + ... + 2522499.

It is an arithmetic number, because the mean of its divisors is an integer number (9416968512).

Almost surely, 2^201044400999 is an apocalyptic number.

201044400999 is a deficient number, since it is larger than the sum of its proper divisors (100298591385).

201044400999 is a wasteful number, since it uses less digits than its factorization.

201044400999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83807.

The product of its (nonzero) digits is 93312, while the sum is 42.

The spelling of 201044400999 in words is "two hundred one billion, forty-four million, four hundred thousand, nine hundred ninety-nine".