19503666082 has 4 divisors (see below), whose sum is σ = 29255499126. Its totient is φ = 9751833040.

The previous prime is 19503666073. The next prime is 19503666097. The reversal of 19503666082 is 28066630591.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 15803255521 + 3700410561 = 125711^2 + 60831^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4875916519 + ... + 4875916522.

Almost surely, 2^19503666082 is an apocalyptic number.

19503666082 is a deficient number, since it is larger than the sum of its proper divisors (9751833044).

19503666082 is an equidigital number, since it uses as much as digits as its factorization.

19503666082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9751833043.

The product of its (nonzero) digits is 466560, while the sum is 46.

The spelling of 19503666082 in words is "nineteen billion, five hundred three million, six hundred sixty-six thousand, eighty-two".