6464420572066 has 16 divisors (see below), whose sum is σ = 9878070725280. Its totient is φ = 3171920221440.

The previous prime is 6464420572021. The next prime is 6464420572073. The reversal of 6464420572066 is 6602750244646.

It is a super-2 number, since 2×6464420572066² (a number of 26 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47404380 + ... + 47540551.

It is an arithmetic number, because the mean of its divisors is an integer number (617379420330).

Almost surely, 2^{6464420572066} is an apocalyptic number.

6464420572066 is a deficient number, since it is larger than the sum of its proper divisors (3413650153214).

6464420572066 is a wasteful number, since it uses less digits than its factorization.

6464420572066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94945569.

The product of its (nonzero) digits is 11612160, while the sum is 52.

The spelling of 6464420572066 in words is "six trillion, four hundred sixty-four billion, four hundred twenty million, five hundred seventy-two thousand, sixty-six".