27178160164 has 27 divisors (see below), whose sum is σ = 49164012891. Its totient is φ = 13145776920.

The previous prime is 27178160143. The next prime is 27178160167. The reversal of 27178160164 is 46106187172.

The square root of 27178160164 is 164858.

It is a perfect power (a square), and thus also a powerful number.

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 27178160164.

It is not an unprimeable number, because it can be changed into a prime (27178160167) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 10219867 + ... + 10222525.

Almost surely, 2^27178160164 is an apocalyptic number.

27178160164 is the 164858-th square number.

It is an amenable number.

27178160164 is a deficient number, since it is larger than the sum of its proper divisors (21985852727).

27178160164 is an frugal number, since it uses more digits than its factorization.

27178160164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5384 (or 2692 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 43.

The spelling of 27178160164 in words is "twenty-seven billion, one hundred seventy-eight million, one hundred sixty thousand, one hundred sixty-four".