4458721466 has 16 divisors (see below), whose sum is σ = 6767041320. Its totient is φ = 2203069440.

The previous prime is 4458721459. The next prime is 4458721481. The reversal of 4458721466 is 6641278544.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1436031025 + 3022690441 = 37895^2 + 54979^2 .

It is a super-2 number, since 2×4458721466² = 39760394222738378312, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 4458721466.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 364400 + ... + 376436.

Almost surely, 2^4458721466 is an apocalyptic number.

4458721466 is a deficient number, since it is larger than the sum of its proper divisors (2308319854).

4458721466 is a wasteful number, since it uses less digits than its factorization.

4458721466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14209.

The product of its digits is 1290240, while the sum is 47.

The square root of 4458721466 is about 66773.6584739821. The cubic root of 4458721466 is about 1645.9000092803.

The spelling of 4458721466 in words is "four billion, four hundred fifty-eight million, seven hundred twenty-one thousand, four hundred sixty-six".