27475577066 has 32 divisors (see below), whose sum is σ = 48324342528. Its totient is φ = 11470296960.

The previous prime is 27475577053. The next prime is 27475577071. The reversal of 27475577066 is 66077557472.

It is a happy number.

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, 338171 + ... + 411473.

It is an arithmetic number, because the mean of its divisors is an integer number (1510135704).

Almost surely, 2^27475577066 is an apocalyptic number.

27475577066 is a deficient number, since it is larger than the sum of its proper divisors (20848765462).

27475577066 is a wasteful number, since it uses less digits than its factorization.

27475577066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74006.

The product of its (nonzero) digits is 17287200, while the sum is 56.

The spelling of 27475577066 in words is "twenty-seven billion, four hundred seventy-five million, five hundred seventy-seven thousand, sixty-six".