4451645316 has 12 divisors (see below), whose sum is σ = 10387172432. Its totient is φ = 1483881768.

The previous prime is 4451645311. The next prime is 4451645321. The reversal of 4451645316 is 6135461544.

It is an interprime number because it is at equal distance from previous prime (4451645311) and next prime (4451645321).

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (4451645311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 185485210 + ... + 185485233.

Almost surely, 2^4451645316 is an apocalyptic number.

It is an amenable number.

4451645316 is an abundant number, since it is smaller than the sum of its proper divisors (5935527116).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4451645316 is a wasteful number, since it uses less digits than its factorization.

4451645316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370970450 (or 370970448 counting only the distinct ones).

The product of its digits is 172800, while the sum is 39.

The square root of 4451645316 is about 66720.6513457415. The cubic root of 4451645316 is about 1645.0288475893.

The spelling of 4451645316 in words is "four billion, four hundred fifty-one million, six hundred forty-five thousand, three hundred sixteen".