1165646627 has 2 divisors, whose sum is σ = 1165646628. Its totient is φ = 1165646626.

The previous prime is 1165646597. The next prime is 1165646639. The reversal of 1165646627 is 7266465611.

It is a strong prime.

It is an emirp because it is prime and its reverse (7266465611) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1165646627 - 2²² = 1161452323 is a prime.

It is not a weakly prime, because it can be changed into another prime (1165646527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 582823313 + 582823314.

It is an arithmetic number, because the mean of its divisors is an integer number (582823314).

Almost surely, 2^1165646627 is an apocalyptic number.

1165646627 is a deficient number, since it is larger than the sum of its proper divisors (1).

1165646627 is an equidigital number, since it uses as much as digits as its factorization.

1165646627 is an evil number, because the sum of its binary digits is even.

The product of its digits is 362880, while the sum is 44.

The square root of 1165646627 is about 34141.5674361913. The cubic root of 1165646627 is about 1052.4197036103.

The spelling of 1165646627 in words is "one billion, one hundred sixty-five million, six hundred forty-six thousand, six hundred twenty-seven".