161848332780 has 48 divisors (see below), whose sum is σ = 453225235680. Its totient is φ = 43154802688.

The previous prime is 161848332769. The next prime is 161848332799. The reversal of 161848332780 is 87233848161.

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, 418786 + ... + 706454.

It is an arithmetic number, because the mean of its divisors is an integer number (9442192410).

Almost surely, 2^161848332780 is an apocalyptic number.

161848332780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

161848332780 is an abundant number, since it is smaller than the sum of its proper divisors (291376902900).

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

161848332780 is a wasteful number, since it uses less digits than its factorization.

161848332780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297058 (or 297056 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 51.

The spelling of 161848332780 in words is "one hundred sixty-one billion, eight hundred forty-eight million, three hundred thirty-two thousand, seven hundred eighty".