1166150505055 has 8 divisors (see below), whose sum is σ = 1416240613872. Its totient is φ = 921680398848.

The previous prime is 1166150505053. The next prime is 1166150505097. The reversal of 1166150505055 is 5505050516611.

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 1166150505055 - 2¹ = 1166150505053 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1166150504999 and 1166150505017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1166150505053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1405000194 + ... + 1405001023.

It is an arithmetic number, because the mean of its divisors is an integer number (177030076734).

Almost surely, 2^{1166150505055} is an apocalyptic number.

1166150505055 is a deficient number, since it is larger than the sum of its proper divisors (250090108817).

1166150505055 is an equidigital number, since it uses as much as digits as its factorization.

1166150505055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2810001305.

The product of its (nonzero) digits is 112500, while the sum is 40.

The spelling of 1166150505055 in words is "one trillion, one hundred sixty-six billion, one hundred fifty million, five hundred five thousand, fifty-five".