6464721101 has 8 divisors (see below), whose sum is σ = 6812457600. Its totient is φ = 6117733440.

The previous prime is 6464721097. The next prime is 6464721161. The reversal of 6464721101 is 1011274646.

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 6464721101 - 2² = 6464721097 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6464721161) 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, 169436 + ... + 204053.

It is an arithmetic number, because the mean of its divisors is an integer number (851557200).

Almost surely, 2^6464721101 is an apocalyptic number.

It is an amenable number.

6464721101 is a deficient number, since it is larger than the sum of its proper divisors (347736499).

6464721101 is a wasteful number, since it uses less digits than its factorization.

6464721101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374419.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 6464721101 is about 80403.4893583606. The cubic root of 6464721101 is about 1862.8730698160.

Adding to 6464721101 its reverse (1011274646), we get a palindrome (7475995747).

The spelling of 6464721101 in words is "six billion, four hundred sixty-four million, seven hundred twenty-one thousand, one hundred one".