165042206923 has 8 divisors (see below), whose sum is σ = 180763361856. Its totient is φ = 149440605000.

The previous prime is 165042206911. The next prime is 165042206963. The reversal of 165042206923 is 329602240561.

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 165042206923 - 2¹³ = 165042198731 is a prime.

It is not an unprimeable number, because it can be changed into a prime (165042206963) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29885361 + ... + 29890882.

It is an arithmetic number, because the mean of its divisors is an integer number (22595420232).

Almost surely, 2^165042206923 is an apocalyptic number.

165042206923 is a deficient number, since it is larger than the sum of its proper divisors (15721154933).

165042206923 is a wasteful number, since it uses less digits than its factorization.

165042206923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59776505.

The product of its (nonzero) digits is 155520, while the sum is 40.

The spelling of 165042206923 in words is "one hundred sixty-five billion, forty-two million, two hundred six thousand, nine hundred twenty-three".