161786688060 has 48 divisors (see below), whose sum is σ = 461549956896. Its totient is φ = 42329094912.

The previous prime is 161786688047. The next prime is 161786688101. The reversal of 161786688060 is 60886687161.

161786688060 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25434979 + ... + 25441338.

It is an arithmetic number, because the mean of its divisors is an integer number (9615624102).

Almost surely, 2^161786688060 is an apocalyptic number.

161786688060 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

161786688060 is an abundant number, since it is smaller than the sum of its proper divisors (299763268836).

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

161786688060 is a wasteful number, since it uses less digits than its factorization.

161786688060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50876382 (or 50876380 counting only the distinct ones).

The product of its (nonzero) digits is 4644864, while the sum is 57.

The spelling of 161786688060 in words is "one hundred sixty-one billion, seven hundred eighty-six million, six hundred eighty-eight thousand, sixty".