20880576706 has 16 divisors (see below), whose sum is σ = 36178112160. Its totient is φ = 8932866880.

The previous prime is 20880576671. The next prime is 20880576763. The reversal of 20880576706 is 60767508802.

It is a self number, because there is not a number n which added to its sum of digits gives 20880576706.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27914836 + ... + 27915583.

It is an arithmetic number, because the mean of its divisors is an integer number (2261132010).

Almost surely, 2^20880576706 is an apocalyptic number.

20880576706 is a deficient number, since it is larger than the sum of its proper divisors (15297535454).

20880576706 is a wasteful number, since it uses less digits than its factorization.

20880576706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55830449.

The product of its (nonzero) digits is 1128960, while the sum is 49.

The spelling of 20880576706 in words is "twenty billion, eight hundred eighty million, five hundred seventy-six thousand, seven hundred six".