611667228407 has 2 divisors, whose sum is σ = 611667228408. Its totient is φ = 611667228406.

The previous prime is 611667228379. The next prime is 611667228413. The reversal of 611667228407 is 704822766116.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 611667228407 - 2³⁴ = 594487359223 is a prime.

It is a super-2 number, since 2×611667228407² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (611667228457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 305833614203 + 305833614204.

It is an arithmetic number, because the mean of its divisors is an integer number (305833614204).

Almost surely, 2^611667228407 is an apocalyptic number.

611667228407 is a deficient number, since it is larger than the sum of its proper divisors (1).

611667228407 is an equidigital number, since it uses as much as digits as its factorization.

611667228407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1354752, while the sum is 50.

The spelling of 611667228407 in words is "six hundred eleven billion, six hundred sixty-seven million, two hundred twenty-eight thousand, four hundred seven".