16536222864 has 360 divisors, whose sum is σ = 58852804608. Its totient is φ = 4302305280.

The previous prime is 16536222851. The next prime is 16536222877. The reversal of 16536222864 is 46822263561.

16536222864 is a `hidden beast` number, since 1 + 6 + 5 + 362 + 2 + 286 + 4 = 666.

16536222864 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (16536222851) and next prime (16536222877).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 3716289 + ... + 3720735.

Almost surely, 2^16536222864 is an apocalyptic number.

16536222864 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16536222864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29426402304).

16536222864 is an abundant number, since it is smaller than the sum of its proper divisors (42316581744).

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

16536222864 is a wasteful number, since it uses less digits than its factorization.

16536222864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4523 (or 4507 counting only the distinct ones).

The product of its digits is 829440, while the sum is 45.

The spelling of 16536222864 in words is "sixteen billion, five hundred thirty-six million, two hundred twenty-two thousand, eight hundred sixty-four".