1140166330561 has 8 divisors (see below), whose sum is σ = 1156491207144. Its totient is φ = 1123860539520.

The previous prime is 1140166330507. The next prime is 1140166330571. The reversal of 1140166330561 is 1650336610411.

It can be written as a sum of positive squares in 4 ways, for example, as 5738971536 + 1134427359025 = 75756^2 + 1065095^2 .

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 1140166330561 - 2²⁵ = 1140132776129 is a prime.

It is a super-2 number, since 2×1140166330561² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1140166330561.

It is not an unprimeable number, because it can be changed into a prime (1140166330571) 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, 4651030 + ... + 4890031.

It is an arithmetic number, because the mean of its divisors is an integer number (144561400893).

Almost surely, 2^{1140166330561} is an apocalyptic number.

It is an amenable number.

1140166330561 is a deficient number, since it is larger than the sum of its proper divisors (16324876583).

1140166330561 is an equidigital number, since it uses as much as digits as its factorization.

1140166330561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9542771.

The product of its (nonzero) digits is 38880, while the sum is 37.

The spelling of 1140166330561 in words is "one trillion, one hundred forty billion, one hundred sixty-six million, three hundred thirty thousand, five hundred sixty-one".