2158963209003 has 16 divisors (see below), whose sum is σ = 3047133323520. Its totient is φ = 1357359384864.

The previous prime is 2158963208993. The next prime is 2158963209041. The reversal of 2158963209003 is 3009023698512.

It is not a de Polignac number, because 2158963209003 - 2⁵ = 2158963208971 is a prime.

It is a super-2 number, since 2×2158963209003² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2158963209503) 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 15 ways as a sum of consecutive naturals, for example, 288550551 + ... + 288558032.

It is an arithmetic number, because the mean of its divisors is an integer number (190445832720).

Almost surely, 2^{2158963209003} is an apocalyptic number.

2158963209003 is a deficient number, since it is larger than the sum of its proper divisors (888170114517).

2158963209003 is a wasteful number, since it uses less digits than its factorization.

2158963209003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 577108658.

The product of its (nonzero) digits is 699840, while the sum is 48.

The spelling of 2158963209003 in words is "two trillion, one hundred fifty-eight billion, nine hundred sixty-three million, two hundred nine thousand, three".