165119766863744 has 256 divisors, whose sum is σ = 410992922972160. Its totient is φ = 64195426713600.

The previous prime is 165119766863699. The next prime is 165119766863767. The reversal of 165119766863744 is 447368667911561.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9296751824 + ... + 9296769584.

It is an arithmetic number, because the mean of its divisors is an integer number (1605441105360).

Almost surely, 2^{165119766863744} is an apocalyptic number.

165119766863744 is a gapful number since it is divisible by the number (14) 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 165119766863744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (205496461486080).

165119766863744 is an abundant number, since it is smaller than the sum of its proper divisors (245873156108416).

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

165119766863744 is a wasteful number, since it uses less digits than its factorization.

165119766863744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19749 (or 19737 counting only the distinct ones).

The product of its digits is 1097349120, while the sum is 74.

The spelling of 165119766863744 in words is "one hundred sixty-five trillion, one hundred nineteen billion, seven hundred sixty-six million, eight hundred sixty-three thousand, seven hundred forty-four".