20880660683 has 8 divisors (see below), whose sum is σ = 21091389696. Its totient is φ = 20670085800.

The previous prime is 20880660667. The next prime is 20880660739. The reversal of 20880660683 is 38606608802.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20880660683 - 2⁴ = 20880660667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20880660583) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 244178 + ... + 318408.

It is an arithmetic number, because the mean of its divisors is an integer number (2636423712).

Almost surely, 2^20880660683 is an apocalyptic number.

20880660683 is a deficient number, since it is larger than the sum of its proper divisors (210729013).

20880660683 is a wasteful number, since it uses less digits than its factorization.

20880660683 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77065.

The product of its (nonzero) digits is 663552, while the sum is 47.

The spelling of 20880660683 in words is "twenty billion, eight hundred eighty million, six hundred sixty thousand, six hundred eighty-three".