1205611166325 has 12 divisors (see below), whose sum is σ = 1993277128448. Its totient is φ = 642992622000.

The previous prime is 1205611166323. The next prime is 1205611166327. The reversal of 1205611166325 is 5236611165021.

It is an interprime number because it is at equal distance from previous prime (1205611166323) and next prime (1205611166327).

It is not a de Polignac number, because 1205611166325 - 2¹ = 1205611166323 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1205611166323) 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 in 11 ways as a sum of consecutive naturals, for example, 8037407701 + ... + 8037407850.

Almost surely, 2^{1205611166325} is an apocalyptic number.

1205611166325 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1205611166325 is a deficient number, since it is larger than the sum of its proper divisors (787665962123).

1205611166325 is a wasteful number, since it uses less digits than its factorization.

1205611166325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16074815564 (or 16074815559 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 39.

The spelling of 1205611166325 in words is "one trillion, two hundred five billion, six hundred eleven million, one hundred sixty-six thousand, three hundred twenty-five".