64613432201 has 4 divisors (see below), whose sum is σ = 64614064404. Its totient is φ = 64612800000.

The previous prime is 64613432171. The next prime is 64613432207. The reversal of 64613432201 is 10223431646.

64613432201 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 brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 28164894976 + 36448537225 = 167824^2 + 190915^2 .

It is a cyclic number.

It is not a de Polignac number, because 64613432201 - 2¹⁰ = 64613431177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64613432207) 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, 123800 + ... + 380201.

It is an arithmetic number, because the mean of its divisors is an integer number (16153516101).

Almost surely, 2^64613432201 is an apocalyptic number.

It is an amenable number.

64613432201 is a deficient number, since it is larger than the sum of its proper divisors (632203).

64613432201 is a wasteful number, since it uses less digits than its factorization.

64613432201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 632202.

The product of its (nonzero) digits is 20736, while the sum is 32.

Adding to 64613432201 its reverse (10223431646), we get a palindrome (74836863847).

The spelling of 64613432201 in words is "sixty-four billion, six hundred thirteen million, four hundred thirty-two thousand, two hundred one".