64124215266 has 16 divisors (see below), whose sum is σ = 128421048384. Its totient is φ = 21345968784.

The previous prime is 64124215241. The next prime is 64124215301. The reversal of 64124215266 is 66251242146.

It is a super-2 number, since 2×64124215266² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7187581 + ... + 7196496.

It is an arithmetic number, because the mean of its divisors is an integer number (8026315524).

Almost surely, 2^64124215266 is an apocalyptic number.

64124215266 is an abundant number, since it is smaller than the sum of its proper divisors (64296833118).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64124215266 is a wasteful number, since it uses less digits than its factorization.

64124215266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14384825.

The product of its digits is 138240, while the sum is 39.

The spelling of 64124215266 in words is "sixty-four billion, one hundred twenty-four million, two hundred fifteen thousand, two hundred sixty-six".