19553366244 has 24 divisors (see below), whose sum is σ = 45629031168. Its totient is φ = 6517144480.

The previous prime is 19553366227. The next prime is 19553366263. The reversal of 19553366244 is 44266335591.

It is a junction number, because it is equal to n+sod(n) for n = 19553366193 and 19553366202.

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, 55054 + ... + 205274.

It is an arithmetic number, because the mean of its divisors is an integer number (1901209632).

Almost surely, 2^19553366244 is an apocalyptic number.

It is an amenable number.

19553366244 is an abundant number, since it is smaller than the sum of its proper divisors (26075664924).

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

19553366244 is a wasteful number, since it uses less digits than its factorization.

19553366244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161075 (or 161073 counting only the distinct ones).

The product of its digits is 2332800, while the sum is 48.

The spelling of 19553366244 in words is "nineteen billion, five hundred fifty-three million, three hundred sixty-six thousand, two hundred forty-four".