6665651150099 has 2 divisors, whose sum is σ = 6665651150100. Its totient is φ = 6665651150098.

The previous prime is 6665651150089. The next prime is 6665651150101. The reversal of 6665651150099 is 9900511565666.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6665651150099 is a prime.

It is a super-2 number, since 2×6665651150099² (a number of 26 digits) contains 22 as substring.

Together with 6665651150101, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (6665651150089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3332825575049 + 3332825575050.

It is an arithmetic number, because the mean of its divisors is an integer number (3332825575050).

Almost surely, 2^{6665651150099} is an apocalyptic number.

6665651150099 is a deficient number, since it is larger than the sum of its proper divisors (1).

6665651150099 is an equidigital number, since it uses as much as digits as its factorization.

6665651150099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13122000, while the sum is 59.

The spelling of 6665651150099 in words is "six trillion, six hundred sixty-five billion, six hundred fifty-one million, one hundred fifty thousand, ninety-nine".