64263264146561 has 8 divisors (see below), whose sum is σ = 64271465177184. Its totient is φ = 64255063671040.

The previous prime is 64263264146531. The next prime is 64263264146563. The reversal of 64263264146561 is 16564146236246.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64263264146561 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 64263264146497 and 64263264146506.

It is not an unprimeable number, because it can be changed into a prime (64263264146563) 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, 261993506 + ... + 262238676.

It is an arithmetic number, because the mean of its divisors is an integer number (8033933147148).

Almost surely, 2^{64263264146561} is an apocalyptic number.

It is an amenable number.

64263264146561 is a deficient number, since it is larger than the sum of its proper divisors (8201030623).

64263264146561 is a wasteful number, since it uses less digits than its factorization.

64263264146561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277551.

The product of its digits is 29859840, while the sum is 56.

The spelling of 64263264146561 in words is "sixty-four trillion, two hundred sixty-three billion, two hundred sixty-four million, one hundred forty-six thousand, five hundred sixty-one".