5627065661 has 4 divisors (see below), whose sum is σ = 6430932192. Its totient is φ = 4823199132.

The previous prime is 5627065651. The next prime is 5627065679. The reversal of 5627065661 is 1665607265.

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 not a de Polignac number, because 5627065661 - 2¹⁸ = 5626803517 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5627065651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 401933255 + ... + 401933268.

It is an arithmetic number, because the mean of its divisors is an integer number (1607733048).

Almost surely, 2^5627065661 is an apocalyptic number.

It is an amenable number.

5627065661 is a deficient number, since it is larger than the sum of its proper divisors (803866531).

5627065661 is an equidigital number, since it uses as much as digits as its factorization.

5627065661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 803866530.

The product of its (nonzero) digits is 453600, while the sum is 44.

The square root of 5627065661 is about 75013.7698092823. The cubic root of 5627065661 is about 1778.6643244400.

The spelling of 5627065661 in words is "five billion, six hundred twenty-seven million, sixty-five thousand, six hundred sixty-one".