2420665166 has 4 divisors (see below), whose sum is σ = 3630997752. Its totient is φ = 1210332582.

The previous prime is 2420665141. The next prime is 2420665183. The reversal of 2420665166 is 6615660242.

It is a semiprime because it is the product of two primes.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 605166290 + ... + 605166293.

It is an arithmetic number, because the mean of its divisors is an integer number (907749438).

Almost surely, 2^2420665166 is an apocalyptic number.

2420665166 is a deficient number, since it is larger than the sum of its proper divisors (1210332586).

2420665166 is a wasteful number, since it uses less digits than its factorization.

2420665166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1210332585.

The product of its (nonzero) digits is 103680, while the sum is 38.

The square root of 2420665166 is about 49200.2557513678. The cubic root of 2420665166 is about 1342.6976852296.

The spelling of 2420665166 in words is "two billion, four hundred twenty million, six hundred sixty-five thousand, one hundred sixty-six".