16818632124 has 96 divisors (see below), whose sum is σ = 45296133120. Its totient is φ = 4757724672.

The previous prime is 16818632123. The next prime is 16818632143. The reversal of 16818632124 is 42123681861.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16818632123) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3771304 + ... + 3775760.

It is an arithmetic number, because the mean of its divisors is an integer number (471834720).

Almost surely, 2^16818632124 is an apocalyptic number.

16818632124 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 16818632124, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22648066560).

16818632124 is an abundant number, since it is smaller than the sum of its proper divisors (28477500996).

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

16818632124 is a wasteful number, since it uses less digits than its factorization.

16818632124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4907 (or 4905 counting only the distinct ones).

The product of its digits is 110592, while the sum is 42.

The spelling of 16818632124 in words is "sixteen billion, eight hundred eighteen million, six hundred thirty-two thousand, one hundred twenty-four".