20863327616 has 16 divisors (see below), whose sum is σ = 41563660740. Its totient is φ = 10431663744.

The previous prime is 20863327567. The next prime is 20863327621. The reversal of 20863327616 is 61672336802.

It is a tau number, because it is divible by the number of its divisors (16).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81497246 + ... + 81497501.

Almost surely, 2^20863327616 is an apocalyptic number.

It is an amenable number.

20863327616 is a deficient number, since it is larger than the sum of its proper divisors (20700333124).

20863327616 is an equidigital number, since it uses as much as digits as its factorization.

20863327616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162994761 (or 162994749 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 44.

The spelling of 20863327616 in words is "twenty billion, eight hundred sixty-three million, three hundred twenty-seven thousand, six hundred sixteen".