1205168025679 has 2 divisors, whose sum is σ = 1205168025680. Its totient is φ = 1205168025678.

The previous prime is 1205168025533. The next prime is 1205168025703. The reversal of 1205168025679 is 9765208615021.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1205168025679 - 2¹⁵ = 1205167992911 is a prime.

It is a super-2 number, since 2×1205168025679² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1205168025079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 602584012839 + 602584012840.

It is an arithmetic number, because the mean of its divisors is an integer number (602584012840).

Almost surely, 2^{1205168025679} is an apocalyptic number.

1205168025679 is a deficient number, since it is larger than the sum of its proper divisors (1).

1205168025679 is an equidigital number, since it uses as much as digits as its factorization.

1205168025679 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1814400, while the sum is 52.

The spelling of 1205168025679 in words is "one trillion, two hundred five billion, one hundred sixty-eight million, twenty-five thousand, six hundred seventy-nine".