6445577001 has 16 divisors (see below), whose sum is σ = 8624922624. Its totient is φ = 4281671184.

The previous prime is 6445576999. The next prime is 6445577011. The reversal of 6445577001 is 1007755446.

It is not a de Polignac number, because 6445577001 - 2¹ = 6445576999 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6445577011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1022080 + ... + 1028366.

It is an arithmetic number, because the mean of its divisors is an integer number (539057664).

Almost surely, 2^6445577001 is an apocalyptic number.

It is an amenable number.

6445577001 is a deficient number, since it is larger than the sum of its proper divisors (2179345623).

6445577001 is a wasteful number, since it uses less digits than its factorization.

6445577001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7460.

The product of its (nonzero) digits is 117600, while the sum is 39.

The square root of 6445577001 is about 80284.3509097508. The cubic root of 6445577001 is about 1861.0323980114.

The spelling of 6445577001 in words is "six billion, four hundred forty-five million, five hundred seventy-seven thousand, one".