1980555547422 has 16 divisors (see below), whose sum is σ = 3961260546192. Its totient is φ = 660160273920.

The previous prime is 1980555547391. The next prime is 1980555547489. The reversal of 1980555547422 is 2247455550891.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6054493 + ... + 6373224.

It is an arithmetic number, because the mean of its divisors is an integer number (247578784137).

Almost surely, 2^{1980555547422} is an apocalyptic number.

1980555547422 is an abundant number, since it is smaller than the sum of its proper divisors (1980704998770).

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

1980555547422 is a wasteful number, since it uses less digits than its factorization.

1980555547422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12454283.

The product of its (nonzero) digits is 20160000, while the sum is 57.

The spelling of 1980555547422 in words is "one trillion, nine hundred eighty billion, five hundred fifty-five million, five hundred forty-seven thousand, four hundred twenty-two".