166496618 has 4 divisors (see below), whose sum is σ = 249744930. Its totient is φ = 83248308.

The previous prime is 166496599. The next prime is 166496653. The reversal of 166496618 is 816694661.

166496618 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.

It can be written as a sum of positive squares in only one way, i.e., 158583649 + 7912969 = 12593^2 + 2813^2 .

It is a super-2 number, since 2×166496618² = 55442247610875848, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41624153 + ... + 41624156.

Almost surely, 2^166496618 is an apocalyptic number.

166496618 is a deficient number, since it is larger than the sum of its proper divisors (83248312).

166496618 is an equidigital number, since it uses as much as digits as its factorization.

166496618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83248311.

The product of its digits is 373248, while the sum is 47.

The square root of 166496618 is about 12903.3568500604. The cubic root of 166496618 is about 550.1339816841.

The spelling of 166496618 in words is "one hundred sixty-six million, four hundred ninety-six thousand, six hundred eighteen".