6395216901 has 8 divisors (see below), whose sum is σ = 8571600384. Its totient is φ = 4241155680.

The previous prime is 6395216873. The next prime is 6395216917. The reversal of 6395216901 is 1096125936.

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

It is not a de Polignac number, because 6395216901 - 2⁵ = 6395216869 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6395216921) 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, 5579896 + ... + 5581041.

It is an arithmetic number, because the mean of its divisors is an integer number (1071450048).

Almost surely, 2^6395216901 is an apocalyptic number.

It is an amenable number.

6395216901 is a deficient number, since it is larger than the sum of its proper divisors (2176383483).

6395216901 is a wasteful number, since it uses less digits than its factorization.

6395216901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11161131.

The product of its (nonzero) digits is 87480, while the sum is 42.

The square root of 6395216901 is about 79970.1000437038. The cubic root of 6395216901 is about 1856.1728936127.

The spelling of 6395216901 in words is "six billion, three hundred ninety-five million, two hundred sixteen thousand, nine hundred one".