166240618 has 8 divisors (see below), whose sum is σ = 249433920. Its totient is φ = 83095980.

The previous prime is 166240597. The next prime is 166240639. The reversal of 166240618 is 816042661.

It is an interprime number because it is at equal distance from previous prime (166240597) and next prime (166240639).

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1888 + ... + 18331.

It is an arithmetic number, because the mean of its divisors is an integer number (31179240).

Almost surely, 2^166240618 is an apocalyptic number.

166240618 is a deficient number, since it is larger than the sum of its proper divisors (83193302).

166240618 is a wasteful number, since it uses less digits than its factorization.

166240618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24332.

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 166240618 is about 12893.4331347396. The cubic root of 166240618 is about 549.8518807751.

The spelling of 166240618 in words is "one hundred sixty-six million, two hundred forty thousand, six hundred eighteen".