8065542566 has 8 divisors (see below), whose sum is σ = 12101491584. Its totient is φ = 4031712040.

The previous prime is 8065542547. The next prime is 8065542571. The reversal of 8065542566 is 6652455608.

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 8065542566.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 520070 + ... + 535353.

It is an arithmetic number, because the mean of its divisors is an integer number (1512686448).

Almost surely, 2^8065542566 is an apocalyptic number.

8065542566 is a deficient number, since it is larger than the sum of its proper divisors (4035949018).

8065542566 is a wasteful number, since it uses less digits than its factorization.

8065542566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1059246.

The product of its (nonzero) digits is 1728000, while the sum is 47.

The square root of 8065542566 is about 89808.3657907213. The cubic root of 8065542566 is about 2005.4470319536.

The spelling of 8065542566 in words is "eight billion, sixty-five million, five hundred forty-two thousand, five hundred sixty-six".