20932858616 has 16 divisors (see below), whose sum is σ = 39512529000. Its totient is φ = 10396184224.

The previous prime is 20932858613. The next prime is 20932858621. The reversal of 20932858616 is 61685823902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20932858613) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 8779370 + ... + 8781753.

Almost surely, 2^20932858616 is an apocalyptic number.

It is an amenable number.

20932858616 is a deficient number, since it is larger than the sum of its proper divisors (18579670384).

20932858616 is a wasteful number, since it uses less digits than its factorization.

20932858616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17561278 (or 17561274 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 50.

The spelling of 20932858616 in words is "twenty billion, nine hundred thirty-two million, eight hundred fifty-eight thousand, six hundred sixteen".