2066615144773 has 4 divisors (see below), whose sum is σ = 2072371733280. Its totient is φ = 2060858556268.

The previous prime is 2066615144761. The next prime is 2066615144819. The reversal of 2066615144773 is 3774415166602.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2066615144773 is a prime.

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 2066615144773.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2066615144173) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2878293715 + ... + 2878294432.

It is an arithmetic number, because the mean of its divisors is an integer number (518092933320).

Almost surely, 2^{2066615144773} is an apocalyptic number.

It is an amenable number.

2066615144773 is a deficient number, since it is larger than the sum of its proper divisors (5756588507).

2066615144773 is an equidigital number, since it uses as much as digits as its factorization.

2066615144773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5756588506.

The product of its (nonzero) digits is 5080320, while the sum is 52.

The spelling of 2066615144773 in words is "two trillion, sixty-six billion, six hundred fifteen million, one hundred forty-four thousand, seven hundred seventy-three".