19455668332 has 12 divisors (see below), whose sum is σ = 34365620520. Its totient is φ = 9636919616.

The previous prime is 19455668327. The next prime is 19455668341. The reversal of 19455668332 is 23386655491.

It is a self number, because there is not a number n which added to its sum of digits gives 19455668332.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22728157 + ... + 22729012.

It is an arithmetic number, because the mean of its divisors is an integer number (2863801710).

Almost surely, 2^19455668332 is an apocalyptic number.

It is an amenable number.

19455668332 is a deficient number, since it is larger than the sum of its proper divisors (14909952188).

19455668332 is a wasteful number, since it uses less digits than its factorization.

19455668332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45457280 (or 45457278 counting only the distinct ones).

The product of its digits is 4665600, while the sum is 52.

The spelling of 19455668332 in words is "nineteen billion, four hundred fifty-five million, six hundred sixty-eight thousand, three hundred thirty-two".