16163308512 has 768 divisors, whose sum is σ = 57915648000. Its totient is φ = 4335648768.

The previous prime is 16163308471. The next prime is 16163308523. The reversal of 16163308512 is 21580336161.

16163308512 is a `hidden beast` number, since 1 + 6 + 1 + 633 + 0 + 8 + 5 + 12 = 666.

It is a super-2 number, since 2×16163308512² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 181610164 + ... + 181610252.

It is an arithmetic number, because the mean of its divisors is an integer number (75411000).

Almost surely, 2^16163308512 is an apocalyptic number.

16163308512 is a gapful number since it is divisible by the number (12) 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 16163308512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28957824000).

16163308512 is an abundant number, since it is smaller than the sum of its proper divisors (41752339488).

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

16163308512 is a wasteful number, since it uses less digits than its factorization.

16163308512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200 (or 186 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The spelling of 16163308512 in words is "sixteen billion, one hundred sixty-three million, three hundred eight thousand, five hundred twelve".