64663523541235 has 16 divisors (see below), whose sum is σ = 77727896148672. Its totient is φ = 51643092211200.

The previous prime is 64663523541217. The next prime is 64663523541293. The reversal of 64663523541235 is 53214532536646.

It is not a de Polignac number, because 64663523541235 - 2²⁹ = 64662986670323 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6710770 + ... + 13204600.

It is an arithmetic number, because the mean of its divisors is an integer number (4857993509292).

Almost surely, 2^{64663523541235} is an apocalyptic number.

64663523541235 is a deficient number, since it is larger than the sum of its proper divisors (13064372607437).

64663523541235 is a wasteful number, since it uses less digits than its factorization.

64663523541235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6497214.

The product of its digits is 46656000, while the sum is 55.

The spelling of 64663523541235 in words is "sixty-four trillion, six hundred sixty-three billion, five hundred twenty-three million, five hundred forty-one thousand, two hundred thirty-five".