6557552361 has 12 divisors (see below), whose sum is σ = 9565803780. Its totient is φ = 4328416800.

The previous prime is 6557552279. The next prime is 6557552389. The reversal of 6557552361 is 1632557556.

6557552361 is a `hidden beast` number, since 6 + 55 + 75 + 523 + 6 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2976248025 + 3581304336 = 54555^2 + 59844^2 .

It is not a de Polignac number, because 6557552361 - 2¹⁰ = 6557551337 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6557552461) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3606106 + ... + 3607923.

It is an arithmetic number, because the mean of its divisors is an integer number (797150315).

Almost surely, 2^6557552361 is an apocalyptic number.

It is an amenable number.

6557552361 is a deficient number, since it is larger than the sum of its proper divisors (3008251419).

6557552361 is a wasteful number, since it uses less digits than its factorization.

6557552361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7214136 (or 7214133 counting only the distinct ones).

The product of its digits is 945000, while the sum is 45.

The square root of 6557552361 is about 80978.7154812917. The cubic root of 6557552361 is about 1871.7474739152.

The spelling of 6557552361 in words is "six billion, five hundred fifty-seven million, five hundred fifty-two thousand, three hundred sixty-one".