1166441573401 has 8 divisors (see below), whose sum is σ = 1256337315464. Its totient is φ = 1076570040960.

The previous prime is 1166441573387. The next prime is 1166441573411. The reversal of 1166441573401 is 1043751446611.

It can be written as a sum of positive squares in 4 ways, for example, as 329792924176 + 836648649225 = 574276^2 + 914685^2 .

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 1166441573401 - 2¹⁵ = 1166441540633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1166441573411) 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, 5952270 + ... + 6145111.

It is an arithmetic number, because the mean of its divisors is an integer number (157042164433).

Almost surely, 2^{1166441573401} is an apocalyptic number.

It is an amenable number.

1166441573401 is a deficient number, since it is larger than the sum of its proper divisors (89895742063).

1166441573401 is a wasteful number, since it uses less digits than its factorization.

1166441573401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12104811.

The product of its (nonzero) digits is 241920, while the sum is 43.

The spelling of 1166441573401 in words is "one trillion, one hundred sixty-six billion, four hundred forty-one million, five hundred seventy-three thousand, four hundred one".