6445401160 has 64 divisors (see below), whose sum is σ = 16653211200. Its totient is φ = 2220422400.

The previous prime is 6445401089. The next prime is 6445401181. The reversal of 6445401160 is 611045446.

It is a super-2 number, since 2×6445401160² = 83086392226658691200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 377131 + ... + 393850.

It is an arithmetic number, because the mean of its divisors is an integer number (260206425).

Almost surely, 2^6445401160 is an apocalyptic number.

It is an amenable number.

6445401160 is an abundant number, since it is smaller than the sum of its proper divisors (10207810040).

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

6445401160 is a wasteful number, since it uses less digits than its factorization.

6445401160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 771022 (or 771018 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 6445401160 is about 80283.2557884893. The cubic root of 6445401160 is about 1861.0154743249.

The spelling of 6445401160 in words is "six billion, four hundred forty-five million, four hundred one thousand, one hundred sixty".