165864410933 has 8 divisors (see below), whose sum is σ = 178627550976. Its totient is φ = 153101890800.

The previous prime is 165864410927. The next prime is 165864410953. The reversal of 165864410933 is 339014468561.

165864410933 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 165864410933 - 2¹⁶ = 165864345397 is a prime.

It is a super-2 number, since 2×165864410933² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165864410953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 504788 + ... + 765858.

It is an arithmetic number, because the mean of its divisors is an integer number (22328443872).

Almost surely, 2^165864410933 is an apocalyptic number.

165864410933 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

165864410933 is a deficient number, since it is larger than the sum of its proper divisors (12763140043).

165864410933 is a wasteful number, since it uses less digits than its factorization.

165864410933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309955.

The product of its (nonzero) digits is 1866240, while the sum is 50.

The spelling of 165864410933 in words is "one hundred sixty-five billion, eight hundred sixty-four million, four hundred ten thousand, nine hundred thirty-three".