183640940743680 has 4224 divisors, whose sum is σ = 844186311014400. Its totient is φ = 37076907589632.

The previous prime is 183640940743597. The next prime is 183640940743723. The reversal of 183640940743680 is 86347049046381.

It is a happy number.

183640940743680 is a `hidden beast` number, since 1 + 8 + 36 + 4 + 0 + 94 + 0 + 7 + 436 + 80 = 666.

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 383 ways as a sum of consecutive naturals, for example, 1716270474187 + ... + 1716270474293.

Almost surely, 2^{183640940743680} is an apocalyptic number.

183640940743680 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 183640940743680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (422093155507200).

183640940743680 is an abundant number, since it is smaller than the sum of its proper divisors (660545370270720).

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

183640940743680 is a wasteful number, since it uses less digits than its factorization.

183640940743680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237 (or 160 counting only the distinct ones).

The product of its (nonzero) digits is 83607552, while the sum is 63.

The spelling of 183640940743680 in words is "one hundred eighty-three trillion, six hundred forty billion, nine hundred forty million, seven hundred forty-three thousand, six hundred eighty".