19116447639696 has 675 divisors, whose sum is σ = 62172480196827. Its totient is φ = 5666417856000.

The previous prime is 19116447639659. The next prime is 19116447639713. The reversal of 19116447639696 is 69693674461191.

The square root of 19116447639696 is 4372236.

It is a perfect power (a square), and thus also a powerful number.

19116447639696 is a `hidden beast` number, since 1 + 9 + 1 + 1 + 6 + 447 + 6 + 3 + 96 + 96 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 17589937969296 + 1526509670400 = 4194036^2 + 1235520^2 .

It is a super-2 number, since 2×19116447639696² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is an unprimeable number.

It is a polite number, since it can be written in 134 ways as a sum of consecutive naturals, for example, 105615732726 + ... + 105615732906.

Almost surely, 2^{19116447639696} is an apocalyptic number.

19116447639696 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

19116447639696 is the 4372236-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19116447639696

19116447639696 is an abundant number, since it is smaller than the sum of its proper divisors (43056032557131).

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

19116447639696 is an equidigital number, since it uses as much as digits as its factorization.

19116447639696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526 (or 258 counting only the distinct ones).

The product of its digits is 317447424, while the sum is 72.

The spelling of 19116447639696 in words is "nineteen trillion, one hundred sixteen billion, four hundred forty-seven million, six hundred thirty-nine thousand, six hundred ninety-six".