27570008066 has 4 divisors (see below), whose sum is σ = 41355012102. Its totient is φ = 13785004032.

The previous prime is 27570008051. The next prime is 27570008101. The reversal of 27570008066 is 66080007572.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 18491920225 + 9078087841 = 135985^2 + 95279^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6892502015 + ... + 6892502018.

Almost surely, 2^27570008066 is an apocalyptic number.

27570008066 is a deficient number, since it is larger than the sum of its proper divisors (13785004036).

27570008066 is a wasteful number, since it uses less digits than its factorization.

27570008066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13785004035.

The product of its (nonzero) digits is 141120, while the sum is 41.

The spelling of 27570008066 in words is "twenty-seven billion, five hundred seventy million, eight thousand, sixty-six".