646406016301 has 16 divisors (see below), whose sum is σ = 704151898560. Its totient is φ = 591285277440.

The previous prime is 646406016293. The next prime is 646406016313. The reversal of 646406016301 is 103610604646.

It is not a de Polignac number, because 646406016301 - 2³ = 646406016293 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (646406016341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3417436 + ... + 3601621.

It is an arithmetic number, because the mean of its divisors is an integer number (44009493660).

Almost surely, 2^646406016301 is an apocalyptic number.

It is an amenable number.

646406016301 is a deficient number, since it is larger than the sum of its proper divisors (57745882259).

646406016301 is a wasteful number, since it uses less digits than its factorization.

646406016301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7019244.

The product of its (nonzero) digits is 62208, while the sum is 37.

The spelling of 646406016301 in words is "six hundred forty-six billion, four hundred six million, sixteen thousand, three hundred one".