165040023047 has 8 divisors (see below), whose sum is σ = 168220560240. Its totient is φ = 161861951680.

The previous prime is 165040023023. The next prime is 165040023119. The reversal of 165040023047 is 740320040561.

165040023047 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 165040023047 - 2¹⁸ = 165039760903 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165040023017) 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, 481022 + ... + 749307.

It is an arithmetic number, because the mean of its divisors is an integer number (21027570030).

Almost surely, 2^165040023047 is an apocalyptic number.

165040023047 is a deficient number, since it is larger than the sum of its proper divisors (3180537193).

165040023047 is a wasteful number, since it uses less digits than its factorization.

165040023047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1232913.

The product of its (nonzero) digits is 20160, while the sum is 32.

The spelling of 165040023047 in words is "one hundred sixty-five billion, forty million, twenty-three thousand, forty-seven".