6566366601 has 8 divisors (see below), whose sum is σ = 9727950560. Its totient is φ = 4377577716.

The previous prime is 6566366581. The next prime is 6566366621. The reversal of 6566366601 is 1066636656.

It is an interprime number because it is at equal distance from previous prime (6566366581) and next prime (6566366621).

It is not a de Polignac number, because 6566366601 - 2¹⁰ = 6566365577 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6566366621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121599355 + ... + 121599408.

It is an arithmetic number, because the mean of its divisors is an integer number (1215993820).

Almost surely, 2^6566366601 is an apocalyptic number.

It is an amenable number.

6566366601 is a deficient number, since it is larger than the sum of its proper divisors (3161583959).

6566366601 is a wasteful number, since it uses less digits than its factorization.

6566366601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243198772 (or 243198766 counting only the distinct ones).

The product of its (nonzero) digits is 699840, while the sum is 45.

The square root of 6566366601 is about 81033.1203953050. The cubic root of 6566366601 is about 1872.5857259640.

The spelling of 6566366601 in words is "six billion, five hundred sixty-six million, three hundred sixty-six thousand, six hundred one".