166246642 has 8 divisors (see below), whose sum is σ = 252882432. Its totient is φ = 81952500.

The previous prime is 166246627. The next prime is 166246657. The reversal of 166246642 is 246642661.

It is an interprime number because it is at equal distance from previous prime (166246627) and next prime (166246657).

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, 585234 + ... + 585517.

It is an arithmetic number, because the mean of its divisors is an integer number (31610304).

Almost surely, 2^166246642 is an apocalyptic number.

166246642 is a deficient number, since it is larger than the sum of its proper divisors (86635790).

166246642 is a wasteful number, since it uses less digits than its factorization.

166246642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1170824.

The product of its digits is 82944, while the sum is 37.

The square root of 166246642 is about 12893.6667399154. Note that the first 3 decimals coincide. The cubic root of 166246642 is about 549.8585222882.

The spelling of 166246642 in words is "one hundred sixty-six million, two hundred forty-six thousand, six hundred forty-two".