64220682724 has 27 divisors (see below), whose sum is σ = 123542658211. Its totient is φ = 29188685240.

The previous prime is 64220682703. The next prime is 64220682763. The reversal of 64220682724 is 42728602246.

The square root of 64220682724 is 253418.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

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 8 ways as a sum of consecutive naturals, for example, 5569437 + ... + 5580955.

Almost surely, 2^64220682724 is an apocalyptic number.

64220682724 is the 253418-th square number.

It is an amenable number.

64220682724 is a deficient number, since it is larger than the sum of its proper divisors (59321975487).

64220682724 is an equidigital number, since it uses as much as digits as its factorization.

64220682724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23064 (or 11532 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 43.

The spelling of 64220682724 in words is "sixty-four billion, two hundred twenty million, six hundred eighty-two thousand, seven hundred twenty-four".