166134418 has 8 divisors (see below), whose sum is σ = 249580620. Its totient is φ = 82940880.

The previous prime is 166134407. The next prime is 166134433. The reversal of 166134418 is 814431661.

It can be written as a sum of positive squares in 2 ways, for example, as 157176369 + 8958049 = 12537^2 + 2993^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61513 + ... + 64156.

Almost surely, 2^166134418 is an apocalyptic number.

166134418 is a deficient number, since it is larger than the sum of its proper divisors (83446202).

166134418 is a wasteful number, since it uses less digits than its factorization.

166134418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126332.

The product of its digits is 13824, while the sum is 34.

The square root of 166134418 is about 12889.3141012235. The cubic root of 166134418 is about 549.7347679828.

The spelling of 166134418 in words is "one hundred sixty-six million, one hundred thirty-four thousand, four hundred eighteen".