16812154368 has 160 divisors (see below), whose sum is σ = 50583503520. Its totient is φ = 5511905280.

The previous prime is 16812154349. The next prime is 16812154393. The reversal of 16812154368 is 86345121861.

16812154368 is a `hidden beast` number, since 1 + 6 + 81 + 21 + 543 + 6 + 8 = 666.

It is a super-2 number, since 2×16812154368² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 833296 + ... + 853232.

It is an arithmetic number, because the mean of its divisors is an integer number (316146897).

Almost surely, 2^16812154368 is an apocalyptic number.

16812154368 is a gapful number since it is divisible by the number (18) 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 16812154368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25291751760).

16812154368 is an abundant number, since it is smaller than the sum of its proper divisors (33771349152).

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

16812154368 is an equidigital number, since it uses as much as digits as its factorization.

16812154368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20025 (or 20003 counting only the distinct ones).

The product of its digits is 276480, while the sum is 45.

The spelling of 16812154368 in words is "sixteen billion, eight hundred twelve million, one hundred fifty-four thousand, three hundred sixty-eight".