165873834434 has 32 divisors (see below), whose sum is σ = 310497739776. Its totient is φ = 64565309520.

The previous prime is 165873834337. The next prime is 165873834449. The reversal of 165873834434 is 434438378561.

165873834434 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 165873834434.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 342932 + ... + 670335.

It is an arithmetic number, because the mean of its divisors is an integer number (9703054368).

Almost surely, 2^165873834434 is an apocalyptic number.

165873834434 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

165873834434 is a deficient number, since it is larger than the sum of its proper divisors (144623905342).

165873834434 is a wasteful number, since it uses less digits than its factorization.

165873834434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1014350.

The product of its digits is 23224320, while the sum is 56.

The spelling of 165873834434 in words is "one hundred sixty-five billion, eight hundred seventy-three million, eight hundred thirty-four thousand, four hundred thirty-four".