166288075582 has 32 divisors (see below), whose sum is σ = 263276542080. Its totient is φ = 78553392480.

The previous prime is 166288075573. The next prime is 166288075589. The reversal of 166288075582 is 285570882661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166288075589) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27660957 + ... + 27666967.

It is an arithmetic number, because the mean of its divisors is an integer number (8227391940).

Almost surely, 2^166288075582 is an apocalyptic number.

166288075582 is a deficient number, since it is larger than the sum of its proper divisors (96988466498).

166288075582 is a wasteful number, since it uses less digits than its factorization.

166288075582 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7896.

The product of its (nonzero) digits is 12902400, while the sum is 58.

The spelling of 166288075582 in words is "one hundred sixty-six billion, two hundred eighty-eight million, seventy-five thousand, five hundred eighty-two".