1005500919191 has 8 divisors (see below), whose sum is σ = 1009532126400. Its totient is φ = 1001476284768.

The previous prime is 1005500919173. The next prime is 1005500919197. The reversal of 1005500919191 is 1919190055001.

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 1005500919191 - 2⁶ = 1005500919127 is a prime.

It is a super-2 number, since 2×1005500919191² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1005500919197) 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, 1336511 + ... + 1948656.

It is an arithmetic number, because the mean of its divisors is an integer number (126191515800).

Almost surely, 2^{1005500919191} is an apocalyptic number.

1005500919191 is a deficient number, since it is larger than the sum of its proper divisors (4031207209).

1005500919191 is an equidigital number, since it uses as much as digits as its factorization.

1005500919191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3286393.

The product of its (nonzero) digits is 18225, while the sum is 41.

The spelling of 1005500919191 in words is "one trillion, five billion, five hundred million, nine hundred nineteen thousand, one hundred ninety-one".