27161006128178 has 32 divisors (see below), whose sum is σ = 46713046751280. Its totient is φ = 11733261281280.

The previous prime is 27161006128147. The next prime is 27161006128247. The reversal of 27161006128178 is 87182160016172.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 4340293055569 + 22820713072609 = 2083337^2 + 4777103^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 169672043 + ... + 169832046.

Almost surely, 2^{27161006128178} is an apocalyptic number.

27161006128178 is a deficient number, since it is larger than the sum of its proper divisors (19552040623102).

27161006128178 is a wasteful number, since it uses less digits than its factorization.

27161006128178 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339504302.

The product of its (nonzero) digits is 451584, while the sum is 50.

The spelling of 27161006128178 in words is "twenty-seven trillion, one hundred sixty-one billion, six million, one hundred twenty-eight thousand, one hundred seventy-eight".