165163035744 has 120 divisors (see below), whose sum is σ = 555131375568. Its totient is φ = 47189433600.

The previous prime is 165163035743. The next prime is 165163035769. The reversal of 165163035744 is 447530361561.

165163035744 is a `hidden beast` number, since 1 + 6 + 5 + 1 + 630 + 3 + 5 + 7 + 4 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 165163035744.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165163035743) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 4533307 + ... + 4569594.

Almost surely, 2^165163035744 is an apocalyptic number.

165163035744 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

165163035744 is an abundant number, since it is smaller than the sum of its proper divisors (389968339824).

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

165163035744 is an equidigital number, since it uses as much as digits as its factorization.

165163035744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9102930 (or 9102913 counting only the distinct ones).

The product of its (nonzero) digits is 907200, while the sum is 45.

The spelling of 165163035744 in words is "one hundred sixty-five billion, one hundred sixty-three million, thirty-five thousand, seven hundred forty-four".