64536316185511 has 2 divisors, whose sum is σ = 64536316185512. Its totient is φ = 64536316185510.

The previous prime is 64536316185499. The next prime is 64536316185611. The reversal of 64536316185511 is 11558161363546.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64536316185511 - 2¹⁵ = 64536316152743 is a prime.

It is a super-2 number, since 2×64536316185511² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64536316185311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32268158092755 + 32268158092756.

It is an arithmetic number, because the mean of its divisors is an integer number (32268158092756).

Almost surely, 2^{64536316185511} is an apocalyptic number.

64536316185511 is a deficient number, since it is larger than the sum of its proper divisors (1).

64536316185511 is an equidigital number, since it uses as much as digits as its factorization.

64536316185511 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7776000, while the sum is 55.

The spelling of 64536316185511 in words is "sixty-four trillion, five hundred thirty-six billion, three hundred sixteen million, one hundred eighty-five thousand, five hundred eleven".