6066566561 has 4 divisors (see below), whose sum is σ = 6618072624. Its totient is φ = 5515060500.

The previous prime is 6066566557. The next prime is 6066566581. The reversal of 6066566561 is 1656656606.

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 6066566561 - 2² = 6066566557 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6066566551) 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, 275753015 + ... + 275753036.

It is an arithmetic number, because the mean of its divisors is an integer number (1654518156).

Almost surely, 2^6066566561 is an apocalyptic number.

It is an amenable number.

6066566561 is a deficient number, since it is larger than the sum of its proper divisors (551506063).

6066566561 is a wasteful number, since it uses less digits than its factorization.

6066566561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 551506062.

The product of its (nonzero) digits is 1166400, while the sum is 47.

The square root of 6066566561 is about 77888.1670152790. The cubic root of 6066566561 is about 1823.8158639630.

The spelling of 6066566561 in words is "six billion, sixty-six million, five hundred sixty-six thousand, five hundred sixty-one".