5645564699557 has 4 divisors (see below), whose sum is σ = 5645743235776. Its totient is φ = 5645386163340.

The previous prime is 5645564699539. The next prime is 5645564699569. The reversal of 5645564699557 is 7559964655465.

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 5645564699557 - 2⁷ = 5645564699429 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 (5645564699507) 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, 89220669 + ... + 89283922.

It is an arithmetic number, because the mean of its divisors is an integer number (1411435808944).

Almost surely, 2^{5645564699557} is an apocalyptic number.

It is an amenable number.

5645564699557 is a deficient number, since it is larger than the sum of its proper divisors (178536219).

5645564699557 is a wasteful number, since it uses less digits than its factorization.

5645564699557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178536218.

The product of its digits is 6123600000, while the sum is 76.

The spelling of 5645564699557 in words is "five trillion, six hundred forty-five billion, five hundred sixty-four million, six hundred ninety-nine thousand, five hundred fifty-seven".