64436162566 has 16 divisors (see below), whose sum is σ = 96994782720. Its totient is φ = 32104666440.

The previous prime is 64436162543. The next prime is 64436162573. The reversal of 64436162566 is 66526163446.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1358275 + ... + 1404913.

It is an arithmetic number, because the mean of its divisors is an integer number (6062173920).

Almost surely, 2^64436162566 is an apocalyptic number.

64436162566 is a deficient number, since it is larger than the sum of its proper divisors (32558620154).

64436162566 is a wasteful number, since it uses less digits than its factorization.

64436162566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49059.

The product of its digits is 3732480, while the sum is 49.

The spelling of 64436162566 in words is "sixty-four billion, four hundred thirty-six million, one hundred sixty-two thousand, five hundred sixty-six".