6445605130 has 16 divisors (see below), whose sum is σ = 11603065320. Its totient is φ = 2578025152.

The previous prime is 6445605113. The next prime is 6445605149. The reversal of 6445605130 is 315065446.

It can be written as a sum of positive squares in 4 ways, for example, as 4941949401 + 1503655729 = 70299^2 + 38777^2 .

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, 157656 + ... + 194284.

Almost surely, 2^6445605130 is an apocalyptic number.

6445605130 is a deficient number, since it is larger than the sum of its proper divisors (5157460190).

6445605130 is a wasteful number, since it uses less digits than its factorization.

6445605130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54233.

The product of its (nonzero) digits is 43200, while the sum is 34.

The square root of 6445605130 is about 80284.5260931395. The cubic root of 6445605130 is about 1861.0351052376.

The spelling of 6445605130 in words is "six billion, four hundred forty-five million, six hundred five thousand, one hundred thirty".