999045540999 has 72 divisors (see below), whose sum is σ = 1609449581376. Its totient is φ = 596653516800.

The previous prime is 999045540991. The next prime is 999045541037.

999045540999 is a `hidden beast` number, since 9 + 9 + 90 + 45 + 5 + 409 + 99 = 666.

999045540999 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 999045540999 - 2³ = 999045540991 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (999045540991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 24592194 + ... + 24632784.

It is an arithmetic number, because the mean of its divisors is an integer number (22353466408).

Almost surely, 2^999045540999 is an apocalyptic number.

999045540999 is a gapful number since it is divisible by the number (99) formed by its first and last digit.

999045540999 is a deficient number, since it is larger than the sum of its proper divisors (610404040377).

999045540999 is a wasteful number, since it uses less digits than its factorization.

999045540999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40949 (or 40935 counting only the distinct ones).

The product of its (nonzero) digits is 212576400, while the sum is 72.

The spelling of 999045540999 in words is "nine hundred ninety-nine billion, forty-five million, five hundred forty thousand, nine hundred ninety-nine".