166318548434 has 16 divisors (see below), whose sum is σ = 250963023168. Its totient is φ = 82665562992.

The previous prime is 166318548413. The next prime is 166318548463. The reversal of 166318548434 is 434845813661.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92897 + ... + 584180.

It is an arithmetic number, because the mean of its divisors is an integer number (15685188948).

Almost surely, 2^166318548434 is an apocalyptic number.

166318548434 is a deficient number, since it is larger than the sum of its proper divisors (84644474734).

166318548434 is a wasteful number, since it uses less digits than its factorization.

166318548434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 677809.

The product of its digits is 6635520, while the sum is 53.

The spelling of 166318548434 in words is "one hundred sixty-six billion, three hundred eighteen million, five hundred forty-eight thousand, four hundred thirty-four".