64995592664247 has 16 divisors (see below), whose sum is σ = 99042577792512. Its totient is φ = 37139710658400.

The previous prime is 64995592664239. The next prime is 64995592664251. The reversal of 64995592664247 is 74246629559946.

It is not a de Polignac number, because 64995592664247 - 2³ = 64995592664239 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64995592664447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24894004 + ... + 27380697.

It is an arithmetic number, because the mean of its divisors is an integer number (6190161112032).

Almost surely, 2^{64995592664247} is an apocalyptic number.

64995592664247 is a deficient number, since it is larger than the sum of its proper divisors (34046985128265).

64995592664247 is a wasteful number, since it uses less digits than its factorization.

64995592664247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52333918.

The product of its digits is 7054387200, while the sum is 78.

The spelling of 64995592664247 in words is "sixty-four trillion, nine hundred ninety-five billion, five hundred ninety-two million, six hundred sixty-four thousand, two hundred forty-seven".