169298538966 has 128 divisors (see below), whose sum is σ = 407275776000. Its totient is φ = 51968746368.

The previous prime is 169298538953. The next prime is 169298539001. The reversal of 169298538966 is 669835892961.

169298538966 is a `hidden beast` number, since 1 + 6 + 9 + 29 + 8 + 538 + 9 + 66 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 169298538894 and 169298538903.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 12923916 + ... + 12937008.

It is an arithmetic number, because the mean of its divisors is an integer number (3181842000).

Almost surely, 2^169298538966 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 169298538966, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (203637888000).

169298538966 is an abundant number, since it is smaller than the sum of its proper divisors (237977237034).

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

169298538966 is a wasteful number, since it uses less digits than its factorization.

169298538966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13515 (or 13509 counting only the distinct ones).

The product of its digits is 302330880, while the sum is 72.

The spelling of 169298538966 in words is "one hundred sixty-nine billion, two hundred ninety-eight million, five hundred thirty-eight thousand, nine hundred sixty-six".