20002180359 has 16 divisors (see below), whose sum is σ = 30605991680. Its totient is φ = 11382387840.

The previous prime is 20002180343. The next prime is 20002180379. The reversal of 20002180359 is 95308120002.

It is a happy number.

It is not a de Polignac number, because 20002180359 - 2⁴ = 20002180343 is a prime.

It is a super-2 number, since 2×20002180359² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20002180379) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1971049 + ... + 1981170.

It is an arithmetic number, because the mean of its divisors is an integer number (1912874480).

Almost surely, 2^20002180359 is an apocalyptic number.

20002180359 is a deficient number, since it is larger than the sum of its proper divisors (10603811321).

20002180359 is a wasteful number, since it uses less digits than its factorization.

20002180359 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3952470.

The product of its (nonzero) digits is 4320, while the sum is 30.

The spelling of 20002180359 in words is "twenty billion, two million, one hundred eighty thousand, three hundred fifty-nine".