64124645506 has 16 divisors (see below), whose sum is σ = 96291369216. Its totient is φ = 32027543856.

The previous prime is 64124645503. The next prime is 64124645521. The reversal of 64124645506 is 60554642146.

It is a super-2 number, since 2×64124645506² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (64124645503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12241920 + ... + 12247156.

It is an arithmetic number, because the mean of its divisors is an integer number (6018210576).

Almost surely, 2^64124645506 is an apocalyptic number.

64124645506 is a deficient number, since it is larger than the sum of its proper divisors (32166723710).

64124645506 is a wasteful number, since it uses less digits than its factorization.

64124645506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10713.

The product of its (nonzero) digits is 691200, while the sum is 43.

The spelling of 64124645506 in words is "sixty-four billion, one hundred twenty-four million, six hundred forty-five thousand, five hundred six".