5661576555 has 16 divisors (see below), whose sum is σ = 9591377184. Its totient is φ = 2841889280.

The previous prime is 5661576493. The next prime is 5661576559. The reversal of 5661576555 is 5556751665.

It is not a de Polignac number, because 5661576555 - 2¹¹ = 5661574507 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a junction number, because it is equal to n+sod(n) for n = 5661576498 and 5661576507.

It is not an unprimeable number, because it can be changed into a prime (5661576559) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11100876 + ... + 11101385.

It is an arithmetic number, because the mean of its divisors is an integer number (599461074).

Almost surely, 2^5661576555 is an apocalyptic number.

5661576555 is a deficient number, since it is larger than the sum of its proper divisors (3929800629).

5661576555 is a wasteful number, since it uses less digits than its factorization.

5661576555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22202286.

The product of its digits is 4725000, while the sum is 51.

The square root of 5661576555 is about 75243.4485852423. The cubic root of 5661576555 is about 1782.2931093874.

The spelling of 5661576555 in words is "five billion, six hundred sixty-one million, five hundred seventy-six thousand, five hundred fifty-five".