646306112901 has 4 divisors (see below), whose sum is σ = 861741483872. Its totient is φ = 430870741932.

The previous prime is 646306112891. The next prime is 646306112909. The reversal of 646306112901 is 109211603646.

646306112901 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 646306112901 - 2¹³ = 646306104709 is a prime.

It is a super-3 number, since 3×646306112901³ (a number of 36 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 646306112901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (646306112909) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 107717685481 + ... + 107717685486.

It is an arithmetic number, because the mean of its divisors is an integer number (215435370968).

Almost surely, 2^646306112901 is an apocalyptic number.

It is an amenable number.

646306112901 is a deficient number, since it is larger than the sum of its proper divisors (215435370971).

646306112901 is a wasteful number, since it uses less digits than its factorization.

646306112901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215435370970.

The product of its (nonzero) digits is 46656, while the sum is 39.

The spelling of 646306112901 in words is "six hundred forty-six billion, three hundred six million, one hundred twelve thousand, nine hundred one".