8066686742 has 16 divisors (see below), whose sum is σ = 12176849664. Its totient is φ = 4007784000.

The previous prime is 8066686739. The next prime is 8066686769. The reversal of 8066686742 is 2476866608.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 348242 + ... + 370682.

It is an arithmetic number, because the mean of its divisors is an integer number (761053104).

Almost surely, 2^8066686742 is an apocalyptic number.

8066686742 is a deficient number, since it is larger than the sum of its proper divisors (4110162922).

8066686742 is a wasteful number, since it uses less digits than its factorization.

8066686742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23575.

The product of its (nonzero) digits is 4644864, while the sum is 53.

The square root of 8066686742 is about 89814.7356618055. The cubic root of 8066686742 is about 2005.5418582202.

The spelling of 8066686742 in words is "eight billion, sixty-six million, six hundred eighty-six thousand, seven hundred forty-two".