1166923601 has 2 divisors, whose sum is σ = 1166923602. Its totient is φ = 1166923600.

The previous prime is 1166923531. The next prime is 1166923609. The reversal of 1166923601 is 1063296611.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 623800576 + 543123025 = 24976^2 + 23305^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1166923601 is a prime.

It is not a weakly prime, because it can be changed into another prime (1166923609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 583461800 + 583461801.

It is an arithmetic number, because the mean of its divisors is an integer number (583461801).

Almost surely, 2^1166923601 is an apocalyptic number.

It is an amenable number.

1166923601 is a deficient number, since it is larger than the sum of its proper divisors (1).

1166923601 is an equidigital number, since it uses as much as digits as its factorization.

1166923601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 1166923601 is about 34160.2634796630. The cubic root of 1166923601 is about 1052.8038743961.

The spelling of 1166923601 in words is "one billion, one hundred sixty-six million, nine hundred twenty-three thousand, six hundred one".