16318745823744 has 2160 divisors, whose sum is σ = 63017460874368. Its totient is φ = 4199774552064.

The previous prime is 16318745823739. The next prime is 16318745823773. The reversal of 16318745823744 is 44732854781361.

16318745823744 is a `hidden beast` number, since 1 + 6 + 3 + 1 + 8 + 7 + 4 + 582 + 3 + 7 + 44 = 666.

It is a super-2 number, since 2×16318745823744² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 215 ways as a sum of consecutive naturals, for example, 48423577944 + ... + 48423578280.

Almost surely, 2^{16318745823744} is an apocalyptic number.

16318745823744 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 16318745823744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31508730437184).

16318745823744 is an abundant number, since it is smaller than the sum of its proper divisors (46698715050624).

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

16318745823744 is an equidigital number, since it uses as much as digits as its factorization.

16318745823744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457 (or 409 counting only the distinct ones).

The product of its digits is 108380160, while the sum is 63.

The spelling of 16318745823744 in words is "sixteen trillion, three hundred eighteen billion, seven hundred forty-five million, eight hundred twenty-three thousand, seven hundred forty-four".