166624946 has 8 divisors (see below), whose sum is σ = 263092080. Its totient is φ = 78927588.

The previous prime is 166624937. The next prime is 166624963. The reversal of 166624946 is 649426661.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 166624897 and 166624906.

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, 2192396 + ... + 2192471.

It is an arithmetic number, because the mean of its divisors is an integer number (32886510).

Almost surely, 2^166624946 is an apocalyptic number.

166624946 is a deficient number, since it is larger than the sum of its proper divisors (96467134).

166624946 is a wasteful number, since it uses less digits than its factorization.

166624946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4384888.

The product of its digits is 373248, while the sum is 44.

The square root of 166624946 is about 12908.3285517529. The cubic root of 166624946 is about 550.2752847816.

The spelling of 166624946 in words is "one hundred sixty-six million, six hundred twenty-four thousand, nine hundred forty-six".