1630040911 has 2 divisors, whose sum is σ = 1630040912. Its totient is φ = 1630040910.

The previous prime is 1630040873. The next prime is 1630040921. The reversal of 1630040911 is 1190400361.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1630040911 - 2¹⁵ = 1630008143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1630040921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 815020455 + 815020456.

It is an arithmetic number, because the mean of its divisors is an integer number (815020456).

Almost surely, 2^1630040911 is an apocalyptic number.

1630040911 is a deficient number, since it is larger than the sum of its proper divisors (1).

1630040911 is an equidigital number, since it uses as much as digits as its factorization.

1630040911 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 1630040911 is about 40373.7651328186. The cubic root of 1630040911 is about 1176.8817678309.

The spelling of 1630040911 in words is "one billion, six hundred thirty million, forty thousand, nine hundred eleven".