27666694333426 has 16 divisors (see below), whose sum is σ = 42640300999296. Its totient is φ = 13453587627696.

The previous prime is 27666694333423. The next prime is 27666694333441. The reversal of 27666694333426 is 62433349666672.

It is not an unprimeable number, because it can be changed into a prime (27666694333423) 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, 81569776 + ... + 81908251.

It is an arithmetic number, because the mean of its divisors is an integer number (2665018812456).

Almost surely, 2^{27666694333426} is an apocalyptic number.

27666694333426 is a deficient number, since it is larger than the sum of its proper divisors (14973606665870).

27666694333426 is a wasteful number, since it uses less digits than its factorization.

27666694333426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163480353.

The product of its digits is 846526464, while the sum is 67.

The spelling of 27666694333426 in words is "twenty-seven trillion, six hundred sixty-six billion, six hundred ninety-four million, three hundred thirty-three thousand, four hundred twenty-six".