161080334540 has 12 divisors (see below), whose sum is σ = 338268702576. Its totient is φ = 64432133808.

The previous prime is 161080334537. The next prime is 161080334551. The reversal of 161080334540 is 45433080161.

It is a self number, because there is not a number n which added to its sum of digits gives 161080334540.

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, 4027008344 + ... + 4027008383.

It is an arithmetic number, because the mean of its divisors is an integer number (28189058548).

Almost surely, 2^161080334540 is an apocalyptic number.

161080334540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

161080334540 is an abundant number, since it is smaller than the sum of its proper divisors (177188368036).

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

161080334540 is a wasteful number, since it uses less digits than its factorization.

161080334540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8054016736 (or 8054016734 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 35.

The spelling of 161080334540 in words is "one hundred sixty-one billion, eighty million, three hundred thirty-four thousand, five hundred forty".