161326585088 has 36 divisors (see below), whose sum is σ = 326099269440. Its totient is φ = 79642228224.

The previous prime is 161326585061. The next prime is 161326585099. The reversal of 161326585088 is 880585623161.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3968270 + ... + 4008717.

It is an arithmetic number, because the mean of its divisors is an integer number (9058313040).

Almost surely, 2^161326585088 is an apocalyptic number.

It is an amenable number.

161326585088 is an abundant number, since it is smaller than the sum of its proper divisors (164772684352).

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

161326585088 is an frugal number, since it uses more digits than its factorization.

161326585088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7977082 (or 7977068 counting only the distinct ones).

The product of its (nonzero) digits is 2764800, while the sum is 53.

The spelling of 161326585088 in words is "one hundred sixty-one billion, three hundred twenty-six million, five hundred eighty-five thousand, eighty-eight".