2066165224245 has 40 divisors (see below), whose sum is σ = 3704172934176. Its totient is φ = 1101841592544.

The previous prime is 2066165224187. The next prime is 2066165224259. The reversal of 2066165224245 is 5424225616602.

2066165224245 is a `hidden beast` number, since 2 + 0 + 6 + 616 + 5 + 2 + 2 + 4 + 24 + 5 = 666.

It is not a de Polignac number, because 2066165224245 - 2¹⁵ = 2066165191477 is a prime.

It is a super-2 number, since 2×2066165224245² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 2066165224245.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 3761754 + ... + 4275876.

Almost surely, 2^{2066165224245} is an apocalyptic number.

It is an amenable number.

2066165224245 is a deficient number, since it is larger than the sum of its proper divisors (1638007709931).

2066165224245 is an equidigital number, since it uses as much as digits as its factorization.

2066165224245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 524063 (or 524054 counting only the distinct ones).

The product of its (nonzero) digits is 1382400, while the sum is 45.

The spelling of 2066165224245 in words is "two trillion, sixty-six billion, one hundred sixty-five million, two hundred twenty-four thousand, two hundred forty-five".