161874286249720 has 64 divisors (see below), whose sum is σ = 414602915005440. Its totient is φ = 56304099561600.

The previous prime is 161874286249691. The next prime is 161874286249727. The reversal of 161874286249720 is 27942682478161.

161874286249720 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161874286249727) 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, 7997731296 + ... + 7997751535.

It is an arithmetic number, because the mean of its divisors is an integer number (6478170546960).

Almost surely, 2^{161874286249720} is an apocalyptic number.

161874286249720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

161874286249720 is an abundant number, since it is smaller than the sum of its proper divisors (252728628755720).

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

161874286249720 is a wasteful number, since it uses less digits than its factorization.

161874286249720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15995482876 (or 15995482872 counting only the distinct ones).

The product of its (nonzero) digits is 130056192, while the sum is 67.

The spelling of 161874286249720 in words is "one hundred sixty-one trillion, eight hundred seventy-four billion, two hundred eighty-six million, two hundred forty-nine thousand, seven hundred twenty".