19956803332 has 6 divisors (see below), whose sum is σ = 34924405838. Its totient is φ = 9978401664.

The previous prime is 19956803309. The next prime is 19956803393. The reversal of 19956803332 is 23330865991.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 15282893376 + 4673909956 = 123624^2 + 68366^2 .

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, 2494600413 + ... + 2494600420.

Almost surely, 2^19956803332 is an apocalyptic number.

It is an amenable number.

19956803332 is a deficient number, since it is larger than the sum of its proper divisors (14967602506).

19956803332 is a wasteful number, since it uses less digits than its factorization.

19956803332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4989200837 (or 4989200835 counting only the distinct ones).

The product of its (nonzero) digits is 1049760, while the sum is 49.

The spelling of 19956803332 in words is "nineteen billion, nine hundred fifty-six million, eight hundred three thousand, three hundred thirty-two".