20166366530441 has 8 divisors (see below), whose sum is σ = 20175703606824. Its totient is φ = 20157029867520.

The previous prime is 20166366530417. The next prime is 20166366530447. The reversal of 20166366530441 is 14403566366102.

It can be written as a sum of positive squares in 4 ways, for example, as 3721889808400 + 16444476722041 = 1929220^2 + 4055179^2 .

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 20166366530441 - 2¹⁰ = 20166366529417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20166366530447) 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, 141984701 + ... + 142126661.

It is an arithmetic number, because the mean of its divisors is an integer number (2521962950853).

Almost surely, 2^{20166366530441} is an apocalyptic number.

It is an amenable number.

20166366530441 is a deficient number, since it is larger than the sum of its proper divisors (9337076383).

20166366530441 is a wasteful number, since it uses less digits than its factorization.

20166366530441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206731.

The product of its (nonzero) digits is 1866240, while the sum is 47.

The spelling of 20166366530441 in words is "twenty trillion, one hundred sixty-six billion, three hundred sixty-six million, five hundred thirty thousand, four hundred forty-one".