165223053075495 has 16 divisors (see below), whose sum is σ = 264383077264992. Its totient is φ = 88110230858880.

The previous prime is 165223053075419. The next prime is 165223053075499. The reversal of 165223053075495 is 594570350322561.

It is not a de Polignac number, because 165223053075495 - 2⁹ = 165223053074983 is a prime.

It is a super-3 number, since 3×165223053075495³ (a number of 44 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165223053075499) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 545517396 + ... + 545820185.

It is an arithmetic number, because the mean of its divisors is an integer number (16523942329062).

Almost surely, 2^{165223053075495} is an apocalyptic number.

165223053075495 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

165223053075495 is a deficient number, since it is larger than the sum of its proper divisors (99160024189497).

165223053075495 is a wasteful number, since it uses less digits than its factorization.

165223053075495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1091347682.

The product of its (nonzero) digits is 34020000, while the sum is 57.

The spelling of 165223053075495 in words is "one hundred sixty-five trillion, two hundred twenty-three billion, fifty-three million, seventy-five thousand, four hundred ninety-five".