6445320101 has 8 divisors (see below), whose sum is σ = 7053726144. Its totient is φ = 5840658720.

The previous prime is 6445320071. The next prime is 6445320139. The reversal of 6445320101 is 1010235446.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6445320101 - 2¹⁰ = 6445319077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6445320601) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 932561 + ... + 939446.

It is an arithmetic number, because the mean of its divisors is an integer number (881715768).

Almost surely, 2^6445320101 is an apocalyptic number.

It is an amenable number.

6445320101 is a deficient number, since it is larger than the sum of its proper divisors (608406043).

6445320101 is a wasteful number, since it uses less digits than its factorization.

6445320101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1872331.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 6445320101 is about 80282.7509556069. The cubic root of 6445320101 is about 1861.0076727580.

Adding to 6445320101 its reverse (1010235446), we get a palindrome (7455555547).

The spelling of 6445320101 in words is "six billion, four hundred forty-five million, three hundred twenty thousand, one hundred one".