163087641774 has 24 divisors (see below), whose sum is σ = 362906735880. Its totient is φ = 52893289008.

The previous prime is 163087641763. The next prime is 163087641817. The reversal of 163087641774 is 477146780361.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 163087641774.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 122437504 + ... + 122438835.

It is an arithmetic number, because the mean of its divisors is an integer number (15121113995).

Almost surely, 2^163087641774 is an apocalyptic number.

163087641774 is an abundant number, since it is smaller than the sum of its proper divisors (199819094106).

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

163087641774 is a wasteful number, since it uses less digits than its factorization.

163087641774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244876384 (or 244876381 counting only the distinct ones).

The product of its (nonzero) digits is 4741632, while the sum is 54.

The spelling of 163087641774 in words is "one hundred sixty-three billion, eighty-seven million, six hundred forty-one thousand, seven hundred seventy-four".