6557564013773 has 8 divisors (see below), whose sum is σ = 6566372306208. Its totient is φ = 6548757846064.

The previous prime is 6557564013629. The next prime is 6557564013809. The reversal of 6557564013773 is 3773104657556.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6557564013773 - 2¹⁶ = 6557563948237 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 (6557564013073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5694515 + ... + 6748527.

It is an arithmetic number, because the mean of its divisors is an integer number (820796538276).

Almost surely, 2^{6557564013773} is an apocalyptic number.

It is an amenable number.

6557564013773 is a deficient number, since it is larger than the sum of its proper divisors (8808292435).

6557564013773 is a wasteful number, since it uses less digits than its factorization.

6557564013773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1062363.

The product of its (nonzero) digits is 55566000, while the sum is 59.

The spelling of 6557564013773 in words is "six trillion, five hundred fifty-seven billion, five hundred sixty-four million, thirteen thousand, seven hundred seventy-three".