115663917550819 has 8 divisors (see below), whose sum is σ = 126226741251312. Its totient is φ = 105109080867840.

The previous prime is 115663917550807. The next prime is 115663917550859. The reversal of 115663917550819 is 918055719366511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 115663917550819 - 2¹¹ = 115663917548771 is a prime.

It is a super-2 number, since 2×115663917550819² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115663917550859) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1996724094 + ... + 1996782019.

It is an arithmetic number, because the mean of its divisors is an integer number (15778342656414).

Almost surely, 2^{115663917550819} is an apocalyptic number.

115663917550819 is a deficient number, since it is larger than the sum of its proper divisors (10562823700493).

115663917550819 is a wasteful number, since it uses less digits than its factorization.

115663917550819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3993508757.

The product of its (nonzero) digits is 61236000, while the sum is 67.

The spelling of 115663917550819 in words is "one hundred fifteen trillion, six hundred sixty-three billion, nine hundred seventeen million, five hundred fifty thousand, eight hundred nineteen".