169225663968 has 120 divisors (see below), whose sum is σ = 507078727848. Its totient is φ = 55344197376.

The previous prime is 169225663931. The next prime is 169225663973. The reversal of 169225663968 is 869366522961.

169225663968 is a `hidden beast` number, since 1 + 6 + 9 + 2 + 2 + 566 + 3 + 9 + 68 = 666.

169225663968 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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 19 ways as a sum of consecutive naturals, for example, 478546 + ... + 753297.

Almost surely, 2^169225663968 is an apocalyptic number.

169225663968 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

169225663968 is an abundant number, since it is smaller than the sum of its proper divisors (337853063880).

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

169225663968 is a wasteful number, since it uses less digits than its factorization.

169225663968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1231918 (or 1231901 counting only the distinct ones).

The product of its digits is 50388480, while the sum is 63.

The spelling of 169225663968 in words is "one hundred sixty-nine billion, two hundred twenty-five million, six hundred sixty-three thousand, nine hundred sixty-eight".