166493534 has 8 divisors (see below), whose sum is σ = 250831560. Its totient is φ = 82883016.

The previous prime is 166493531. The next prime is 166493557. The reversal of 166493534 is 435394661.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 166493491 and 166493500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166493531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 181304 + ... + 182219.

It is an arithmetic number, because the mean of its divisors is an integer number (31353945).

Almost surely, 2^166493534 is an apocalyptic number.

166493534 is a deficient number, since it is larger than the sum of its proper divisors (84338026).

166493534 is a wasteful number, since it uses less digits than its factorization.

166493534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363754.

The product of its digits is 233280, while the sum is 41.

The square root of 166493534 is about 12903.2373457206. The cubic root of 166493534 is about 550.1305849711.

The spelling of 166493534 in words is "one hundred sixty-six million, four hundred ninety-three thousand, five hundred thirty-four".