1166781004352 has 28 divisors (see below), whose sum is σ = 2349888244080. Its totient is φ = 574683179136.

The previous prime is 1166781004349. The next prime is 1166781004387. The reversal of 1166781004352 is 2534001876611.

It is a super-2 number, since 2×1166781004352² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 136047602 + ... + 136056177.

Almost surely, 2^{1166781004352} is an apocalyptic number.

It is an amenable number.

1166781004352 is an abundant number, since it is smaller than the sum of its proper divisors (1183107239728).

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

1166781004352 is an equidigital number, since it uses as much as digits as its factorization.

1166781004352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272103858 (or 272103848 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 44.

The spelling of 1166781004352 in words is "one trillion, one hundred sixty-six billion, seven hundred eighty-one million, four thousand, three hundred fifty-two".