6641572751466 has 16 divisors (see below), whose sum is σ = 13283763840288. Its totient is φ = 2213754527600.

The previous prime is 6641572751461. The next prime is 6641572751491.

6641572751466 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×6641572751466² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6641572751461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25624365 + ... + 25882256.

It is an arithmetic number, because the mean of its divisors is an integer number (830235240018).

Almost surely, 2^{6641572751466} is an apocalyptic number.

6641572751466 is an abundant number, since it is smaller than the sum of its proper divisors (6642191088822).

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

6641572751466 is a wasteful number, since it uses less digits than its factorization.

6641572751466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51528117.

The product of its digits is 50803200, while the sum is 60.

The spelling of 6641572751466 in words is "six trillion, six hundred forty-one billion, five hundred seventy-two million, seven hundred fifty-one thousand, four hundred sixty-six".