1566165445241 has 24 divisors (see below), whose sum is σ = 1617417316800. Its totient is φ = 1516448304000.

The previous prime is 1566165445237. The next prime is 1566165445289. The reversal of 1566165445241 is 1425445616651.

It is not a de Polignac number, because 1566165445241 - 2² = 1566165445237 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1566165445241.

It is not an unprimeable number, because it can be changed into a prime (1566165445231) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 370337315 + ... + 370341543.

It is an arithmetic number, because the mean of its divisors is an integer number (67392388200).

Almost surely, 2^{1566165445241} is an apocalyptic number.

It is an amenable number.

1566165445241 is a deficient number, since it is larger than the sum of its proper divisors (51251871559).

1566165445241 is a wasteful number, since it uses less digits than its factorization.

1566165445241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5921 (or 5880 counting only the distinct ones).

The product of its digits is 3456000, while the sum is 50.

The spelling of 1566165445241 in words is "one trillion, five hundred sixty-six billion, one hundred sixty-five million, four hundred forty-five thousand, two hundred forty-one".