6601200540643 has 2 divisors, whose sum is σ = 6601200540644. Its totient is φ = 6601200540642.

The previous prime is 6601200540491. The next prime is 6601200540653. The reversal of 6601200540643 is 3460450021066.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6601200540643 - 2²⁹ = 6600663669731 is a prime.

It is a super-3 number, since 3×6601200540643³ (a number of 39 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (6601200540653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3300600270321 + 3300600270322.

It is an arithmetic number, because the mean of its divisors is an integer number (3300600270322).

Almost surely, 2^{6601200540643} is an apocalyptic number.

6601200540643 is a deficient number, since it is larger than the sum of its proper divisors (1).

6601200540643 is an equidigital number, since it uses as much as digits as its factorization.

6601200540643 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 103680, while the sum is 37.

The spelling of 6601200540643 in words is "six trillion, six hundred one billion, two hundred million, five hundred forty thousand, six hundred forty-three".