183996401616 has 120 divisors (see below), whose sum is σ = 536220322560. Its totient is φ = 58824864000.

The previous prime is 183996401599. The next prime is 183996401629. The reversal of 183996401616 is 616104699381.

It is a happy number.

183996401616 is a `hidden beast` number, since 18 + 3 + 9 + 9 + 6 + 4 + 0 + 1 + 616 = 666.

It is a super-2 number, since 2×183996401616² (a number of 23 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 23 ways as a sum of consecutive naturals, for example, 484681 + ... + 776471.

It is an arithmetic number, because the mean of its divisors is an integer number (4468502688).

Almost surely, 2^183996401616 is an apocalyptic number.

183996401616 is a gapful number since it is divisible by the number (16) 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 183996401616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (268110161280).

183996401616 is an abundant number, since it is smaller than the sum of its proper divisors (352223920944).

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

183996401616 is a wasteful number, since it uses less digits than its factorization.

183996401616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291985 (or 291976 counting only the distinct ones).

The product of its (nonzero) digits is 1679616, while the sum is 54.

The spelling of 183996401616 in words is "one hundred eighty-three billion, nine hundred ninety-six million, four hundred one thousand, six hundred sixteen".