645106200611 has 2 divisors, whose sum is σ = 645106200612. Its totient is φ = 645106200610.

The previous prime is 645106200577. The next prime is 645106200623. The reversal of 645106200611 is 116002601546.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 645106200611 - 2¹⁴ = 645106184227 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (645106200511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 322553100305 + 322553100306.

It is an arithmetic number, because the mean of its divisors is an integer number (322553100306).

Almost surely, 2^645106200611 is an apocalyptic number.

645106200611 is a deficient number, since it is larger than the sum of its proper divisors (1).

645106200611 is an equidigital number, since it uses as much as digits as its factorization.

645106200611 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 32.

The spelling of 645106200611 in words is "six hundred forty-five billion, one hundred six million, two hundred thousand, six hundred eleven".