1166506351 has 2 divisors, whose sum is σ = 1166506352. Its totient is φ = 1166506350.

The previous prime is 1166506343. The next prime is 1166506373. The reversal of 1166506351 is 1536056611.

It is a weak prime.

It is an emirp because it is prime and its reverse (1536056611) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1166506351 - 2³ = 1166506343 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1166506321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 583253175 + 583253176.

It is an arithmetic number, because the mean of its divisors is an integer number (583253176).

Almost surely, 2^1166506351 is an apocalyptic number.

1166506351 is a deficient number, since it is larger than the sum of its proper divisors (1).

1166506351 is an equidigital number, since it uses as much as digits as its factorization.

1166506351 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16200, while the sum is 34.

The square root of 1166506351 is about 34154.1556915114. The cubic root of 1166506351 is about 1052.6783778101.

The spelling of 1166506351 in words is "one billion, one hundred sixty-six million, five hundred six thousand, three hundred fifty-one".