4458161642 has 16 divisors (see below), whose sum is σ = 7404059232. Its totient is φ = 1996191120.

The previous prime is 4458161633. The next prime is 4458161647. The reversal of 4458161642 is 2461618544.

It is a self number, because there is not a number n which added to its sum of digits gives 4458161642.

It is not an unprimeable number, because it can be changed into a prime (4458161647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1510793 + ... + 1513740.

It is an arithmetic number, because the mean of its divisors is an integer number (462753702).

Almost surely, 2^4458161642 is an apocalyptic number.

4458161642 is a deficient number, since it is larger than the sum of its proper divisors (2945897590).

4458161642 is a wasteful number, since it uses less digits than its factorization.

4458161642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3024613.

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

The square root of 4458161642 is about 66769.4663899600. The cubic root of 4458161642 is about 1645.8311216033.

The spelling of 4458161642 in words is "four billion, four hundred fifty-eight million, one hundred sixty-one thousand, six hundred forty-two".