1166311451 has 2 divisors, whose sum is σ = 1166311452. Its totient is φ = 1166311450.

The previous prime is 1166311423. The next prime is 1166311457. The reversal of 1166311451 is 1541136611.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1166311451 - 2⁶ = 1166311387 is a prime.

It is not a weakly prime, because it can be changed into another prime (1166311457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 583155725 + 583155726.

It is an arithmetic number, because the mean of its divisors is an integer number (583155726).

Almost surely, 2^1166311451 is an apocalyptic number.

1166311451 is a deficient number, since it is larger than the sum of its proper divisors (1).

1166311451 is an equidigital number, since it uses as much as digits as its factorization.

1166311451 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2160, while the sum is 29.

The square root of 1166311451 is about 34151.3023324148. The cubic root of 1166311451 is about 1052.6197473411.

The spelling of 1166311451 in words is "one billion, one hundred sixty-six million, three hundred eleven thousand, four hundred fifty-one".