2164518446 has 4 divisors (see below), whose sum is σ = 3246777672. Its totient is φ = 1082259222.

The previous prime is 2164518413. The next prime is 2164518457. The reversal of 2164518446 is 6448154612.

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 polite number, since it can be written as a sum of consecutive naturals, namely, 541129610 + ... + 541129613.

It is an arithmetic number, because the mean of its divisors is an integer number (811694418).

Almost surely, 2^2164518446 is an apocalyptic number.

2164518446 is a deficient number, since it is larger than the sum of its proper divisors (1082259226).

2164518446 is a wasteful number, since it uses less digits than its factorization.

2164518446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1082259225.

The product of its digits is 184320, while the sum is 41.

The square root of 2164518446 is about 46524.3854983599. The cubic root of 2164518446 is about 1293.5615470532.

The spelling of 2164518446 in words is "two billion, one hundred sixty-four million, five hundred eighteen thousand, four hundred forty-six".