169082021438 has 12 divisors (see below), whose sum is σ = 278775729960. Its totient is φ = 76855464180.

The previous prime is 169082021417. The next prime is 169082021441. The reversal of 169082021438 is 834120280961.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 349342778 + ... + 349343261.

It is an arithmetic number, because the mean of its divisors is an integer number (23231310830).

Almost surely, 2^169082021438 is an apocalyptic number.

169082021438 is a deficient number, since it is larger than the sum of its proper divisors (109693708522).

169082021438 is a wasteful number, since it uses less digits than its factorization.

169082021438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 698686063 (or 698686052 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 44.

The spelling of 169082021438 in words is "one hundred sixty-nine billion, eighty-two million, twenty-one thousand, four hundred thirty-eight".