19552193616 has 20 divisors (see below), whose sum is σ = 50509833632. Its totient is φ = 6517397856.

The previous prime is 19552193603. The next prime is 19552193627. The reversal of 19552193616 is 61639125591.

It is a Harshad number since it is a multiple of its sum of digits (48), and also a Moran number because the ratio is a prime number: 407337367 = 19552193616 / (1 + 9 + 5 + 5 + 2 + 1 + 9 + 3 + 6 + 1 + 6).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 203668636 + ... + 203668731.

Almost surely, 2^19552193616 is an apocalyptic number.

19552193616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

19552193616 is an abundant number, since it is smaller than the sum of its proper divisors (30957640016).

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

19552193616 is a wasteful number, since it uses less digits than its factorization.

19552193616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407337378 (or 407337372 counting only the distinct ones).

The product of its digits is 437400, while the sum is 48.

The spelling of 19552193616 in words is "nineteen billion, five hundred fifty-two million, one hundred ninety-three thousand, six hundred sixteen".