4455721136 has 20 divisors (see below), whose sum is σ = 8638342200. Its totient is φ = 2226471552.

The previous prime is 4455721133. The next prime is 4455721139. The reversal of 4455721136 is 6311275544.

It is an interprime number because it is at equal distance from previous prime (4455721133) and next prime (4455721139).

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 4455721136.

It is not an unprimeable number, because it can be changed into a prime (4455721133) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 60101 + ... + 111908.

It is an arithmetic number, because the mean of its divisors is an integer number (431917110).

Almost surely, 2^4455721136 is an apocalyptic number.

It is an amenable number.

4455721136 is a deficient number, since it is larger than the sum of its proper divisors (4182621064).

4455721136 is a wasteful number, since it uses less digits than its factorization.

4455721136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173636 (or 173630 counting only the distinct ones).

The product of its digits is 100800, while the sum is 38.

The square root of 4455721136 is about 66751.1882740675. The cubic root of 4455721136 is about 1645.5307441374.

The spelling of 4455721136 in words is "four billion, four hundred fifty-five million, seven hundred twenty-one thousand, one hundred thirty-six".