2066551827 has 4 divisors (see below), whose sum is σ = 2755402440. Its totient is φ = 1377701216.

The previous prime is 2066551801. The next prime is 2066551849. The reversal of 2066551827 is 7281556602.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2066551827 - 2⁶ = 2066551763 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2066551897) 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, 344425302 + ... + 344425307.

It is an arithmetic number, because the mean of its divisors is an integer number (688850610).

Almost surely, 2^2066551827 is an apocalyptic number.

2066551827 is a deficient number, since it is larger than the sum of its proper divisors (688850613).

2066551827 is an equidigital number, since it uses as much as digits as its factorization.

2066551827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 688850612.

The product of its (nonzero) digits is 201600, while the sum is 42.

The square root of 2066551827 is about 45459.3425711371. The cubic root of 2066551827 is about 1273.7438510266.

The spelling of 2066551827 in words is "two billion, sixty-six million, five hundred fifty-one thousand, eight hundred twenty-seven".