64353664201 has 16 divisors (see below), whose sum is σ = 67235850000. Its totient is φ = 61516578816.

The previous prime is 64353664171. The next prime is 64353664273. The reversal of 64353664201 is 10246635346.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 799758400 + 63553905801 = 28280^2 + 252099^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64353664201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64353667201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4446625 + ... + 4461073.

It is an arithmetic number, because the mean of its divisors is an integer number (4202240625).

Almost surely, 2^64353664201 is an apocalyptic number.

It is an amenable number.

64353664201 is a deficient number, since it is larger than the sum of its proper divisors (2882185799).

64353664201 is a wasteful number, since it uses less digits than its factorization.

64353664201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15996.

The product of its (nonzero) digits is 311040, while the sum is 40.

The spelling of 64353664201 in words is "sixty-four billion, three hundred fifty-three million, six hundred sixty-four thousand, two hundred one".