169864816 has 40 divisors (see below), whose sum is σ = 380158704. Its totient is φ = 72668160.

The previous prime is 169864789. The next prime is 169864823. The reversal of 169864816 is 618468961.

It is a self number, because there is not a number n which added to its sum of digits gives 169864816.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25395 + ... + 31378.

Almost surely, 2^169864816 is an apocalyptic number.

169864816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

169864816 is an abundant number, since it is smaller than the sum of its proper divisors (210293888).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

169864816 is a wasteful number, since it uses less digits than its factorization.

169864816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56809 (or 56803 counting only the distinct ones).

The product of its digits is 497664, while the sum is 49.

The square root of 169864816 is about 13033.2197096496. The cubic root of 169864816 is about 553.8189488616.

The spelling of 169864816 in words is "one hundred sixty-nine million, eight hundred sixty-four thousand, eight hundred sixteen".