166046473 has 4 divisors (see below), whose sum is σ = 168860880. Its totient is φ = 163232068.

The previous prime is 166046459. The next prime is 166046477. The reversal of 166046473 is 374640661.

166046473 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-166046473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (166046477) 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, 1407115 + ... + 1407232.

It is an arithmetic number, because the mean of its divisors is an integer number (42215220).

Almost surely, 2^166046473 is an apocalyptic number.

It is an amenable number.

166046473 is a deficient number, since it is larger than the sum of its proper divisors (2814407).

166046473 is an equidigital number, since it uses as much as digits as its factorization.

166046473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2814406.

The product of its (nonzero) digits is 72576, while the sum is 37.

The square root of 166046473 is about 12885.9021026857. The cubic root of 166046473 is about 549.6377482359.

The spelling of 166046473 in words is "one hundred sixty-six million, forty-six thousand, four hundred seventy-three".