20880232305 has 32 divisors (see below), whose sum is σ = 35202954240. Its totient is φ = 10539138240.

The previous prime is 20880232279. The next prime is 20880232327. The reversal of 20880232305 is 50323208802.

It is not a de Polignac number, because 20880232305 - 2⁸ = 20880232049 is a prime.

It is a super-2 number, since 2×20880232305² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 242890 + ... + 317420.

It is an arithmetic number, because the mean of its divisors is an integer number (1100092320).

Almost surely, 2^20880232305 is an apocalyptic number.

It is an amenable number.

20880232305 is a deficient number, since it is larger than the sum of its proper divisors (14322721935).

20880232305 is a wasteful number, since it uses less digits than its factorization.

20880232305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75541.

The product of its (nonzero) digits is 23040, while the sum is 33.

The spelling of 20880232305 in words is "twenty billion, eight hundred eighty million, two hundred thirty-two thousand, three hundred five".