183799404391680 has 5184 divisors, whose sum is σ = 885742357893120. Its totient is φ = 35615383879680.

The previous prime is 183799404391639. The next prime is 183799404391709. The reversal of 183799404391680 is 86193404997381.

183799404391680 is a `hidden beast` number, since 1 + 8 + 3 + 7 + 99 + 40 + 439 + 1 + 68 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (5184).

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a junction number, because it is equal to n+sod(n) for n = 183799404391599 and 183799404391608.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 575 ways as a sum of consecutive naturals, for example, 365406370309 + ... + 365406370811.

Almost surely, 2^{183799404391680} is an apocalyptic number.

183799404391680 is a gapful number since it is divisible by the number (10) 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 183799404391680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (442871178946560).

183799404391680 is an abundant number, since it is smaller than the sum of its proper divisors (701942953501440).

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

183799404391680 is a wasteful number, since it uses less digits than its factorization.

183799404391680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 660 (or 623 counting only the distinct ones).

The product of its (nonzero) digits is 282175488, while the sum is 72.

The spelling of 183799404391680 in words is "one hundred eighty-three trillion, seven hundred ninety-nine billion, four hundred four million, three hundred ninety-one thousand, six hundred eighty".