163783616695680 has 512 divisors, whose sum is σ = 537845575680000. Its totient is φ = 42375572029440.

The previous prime is 163783616695669. The next prime is 163783616695729. The reversal of 163783616695680 is 86596616387361.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 10446042081 + ... + 10446057759.

It is an arithmetic number, because the mean of its divisors is an integer number (1050479640000).

Almost surely, 2^{163783616695680} is an apocalyptic number.

163783616695680 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 163783616695680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (268922787840000).

163783616695680 is an abundant number, since it is smaller than the sum of its proper divisors (374061958984320).

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

163783616695680 is a wasteful number, since it uses less digits than its factorization.

163783616695680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16970 (or 16958 counting only the distinct ones).

The product of its (nonzero) digits is 1410877440, while the sum is 75.

The spelling of 163783616695680 in words is "one hundred sixty-three trillion, seven hundred eighty-three billion, six hundred sixteen million, six hundred ninety-five thousand, six hundred eighty".