165375608896 has 21 divisors (see below), whose sum is σ = 328173679821. Its totient is φ = 82686177792.

The previous prime is 165375608863. The next prime is 165375608897. The reversal of 165375608896 is 698806573561.

The square root of 165375608896 is 406664.

It is a perfect power (a square), and thus also a powerful number.

165375608896 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 81544513600 + 83831095296 = 285560^2 + 289536^2 .

It is a Harshad number since it is a multiple of its sum of digits (64).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (165375608897) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 3227896 + ... + 3278728.

Almost surely, 2^165375608896 is an apocalyptic number.

165375608896 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

165375608896 is the 406664-th square number.

It is an amenable number.

165375608896 is a deficient number, since it is larger than the sum of its proper divisors (162798070925).

165375608896 is an frugal number, since it uses more digits than its factorization.

165375608896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101678 (or 50835 counting only the distinct ones).

The product of its (nonzero) digits is 65318400, while the sum is 64.

Multiplying 165375608896 by its sum of digits (64), we get a square (10584038969344 = 3253312²).

165375608896 divided by its sum of digits (64) gives a square (2583993889 = 50833²).

The spelling of 165375608896 in words is "one hundred sixty-five billion, three hundred seventy-five million, six hundred eight thousand, eight hundred ninety-six".