166298642 has 8 divisors (see below), whose sum is σ = 249790476. Its totient is φ = 83035152.

The previous prime is 166298633. The next prime is 166298669. The reversal of 166298642 is 246892661.

It can be written as a sum of positive squares in 2 ways, for example, as 151560721 + 14737921 = 12311^2 + 3839^2 .

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 = 166298593 and 166298602.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55253 + ... + 58184.

Almost surely, 2^166298642 is an apocalyptic number.

166298642 is a deficient number, since it is larger than the sum of its proper divisors (83491834).

166298642 is a wasteful number, since it uses less digits than its factorization.

166298642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114172.

The product of its digits is 248832, while the sum is 44.

The square root of 166298642 is about 12895.6830761306. The cubic root of 166298642 is about 549.9158460777.

The spelling of 166298642 in words is "one hundred sixty-six million, two hundred ninety-eight thousand, six hundred forty-two".