64463364561361 has 8 divisors (see below), whose sum is σ = 66208746828224. Its totient is φ = 62718146987760.

The previous prime is 64463364561331. The next prime is 64463364561397. The reversal of 64463364561361 is 16316546336446.

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 64463364561361 - 2²¹ = 64463362464209 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 64463364561296 and 64463364561305.

It is not an unprimeable number, because it can be changed into a prime (64463364561331) 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, 40379685 + ... + 41945746.

It is an arithmetic number, because the mean of its divisors is an integer number (8276093353528).

Almost surely, 2^{64463364561361} is an apocalyptic number.

It is an amenable number.

64463364561361 is a deficient number, since it is larger than the sum of its proper divisors (1745382266863).

64463364561361 is a wasteful number, since it uses less digits than its factorization.

64463364561361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82346631.

The product of its digits is 67184640, while the sum is 58.

The spelling of 64463364561361 in words is "sixty-four trillion, four hundred sixty-three billion, three hundred sixty-four million, five hundred sixty-one thousand, three hundred sixty-one".