169168807420 has 48 divisors (see below), whose sum is σ = 373367393280. Its totient is φ = 64259781696.

The previous prime is 169168807343. The next prime is 169168807427. The reversal of 169168807420 is 24708861961.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (169168807427) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1258932 + ... + 1386811.

It is an arithmetic number, because the mean of its divisors is an integer number (7778487360).

Almost surely, 2^169168807420 is an apocalyptic number.

169168807420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

169168807420 is an abundant number, since it is smaller than the sum of its proper divisors (204198585860).

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

169168807420 is a wasteful number, since it uses less digits than its factorization.

169168807420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2645914 (or 2645912 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 52.

The spelling of 169168807420 in words is "one hundred sixty-nine billion, one hundred sixty-eight million, eight hundred seven thousand, four hundred twenty".