6501443416066 has 4 divisors (see below), whose sum is σ = 9752165124102. Its totient is φ = 3250721708032.

The previous prime is 6501443416063. The next prime is 6501443416073. The reversal of 6501443416066 is 6606143441056.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 6312761775441 + 188681640625 = 2512521^2 + 434375^2 .

It is not an unprimeable number, because it can be changed into a prime (6501443416063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1625360854015 + ... + 1625360854018.

Almost surely, 2^{6501443416066} is an apocalyptic number.

6501443416066 is a deficient number, since it is larger than the sum of its proper divisors (3250721708036).

6501443416066 is a wasteful number, since it uses less digits than its factorization.

6501443416066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3250721708035.

The product of its (nonzero) digits is 1244160, while the sum is 46.

The spelling of 6501443416066 in words is "six trillion, five hundred one billion, four hundred forty-three million, four hundred sixteen thousand, sixty-six".