16586366922 has 56 divisors (see below), whose sum is σ = 37414058916. Its totient is φ = 5512219776.

The previous prime is 16586366899. The next prime is 16586366971. The reversal of 16586366922 is 22966368561.

16586366922 is a `hidden beast` number, since 1 + 6 + 586 + 36 + 6 + 9 + 22 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 16538217201 + 48149721 = 128601^2 + 6939^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 474468 + ... + 508224.

Almost surely, 2^16586366922 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16586366922, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18707029458).

16586366922 is an abundant number, since it is smaller than the sum of its proper divisors (20827691994).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16586366922 is an equidigital number, since it uses as much as digits as its factorization.

16586366922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34114 (or 34099 counting only the distinct ones).

The product of its digits is 5598720, while the sum is 54.

The spelling of 16586366922 in words is "sixteen billion, five hundred eighty-six million, three hundred sixty-six thousand, nine hundred twenty-two".