27666576372077 has 8 divisors (see below), whose sum is σ = 28310061140064. Its totient is φ = 27023095059408.

The previous prime is 27666576372073. The next prime is 27666576372091. The reversal of 27666576372077 is 77027367566672.

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

It is a cyclic number.

It is not a de Polignac number, because 27666576372077 - 2² = 27666576372073 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 27666576372077.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27666576372073) 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, 22767698 + ... + 23952060.

It is an arithmetic number, because the mean of its divisors is an integer number (3538757642508).

Almost surely, 2^{27666576372077} is an apocalyptic number.

It is an amenable number.

27666576372077 is a deficient number, since it is larger than the sum of its proper divisors (643484767987).

27666576372077 is a wasteful number, since it uses less digits than its factorization.

27666576372077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1727659.

The product of its (nonzero) digits is 1306912320, while the sum is 71.

The spelling of 27666576372077 in words is "twenty-seven trillion, six hundred sixty-six billion, five hundred seventy-six million, three hundred seventy-two thousand, seventy-seven".