1616630959 has 2 divisors, whose sum is σ = 1616630960. Its totient is φ = 1616630958.

The previous prime is 1616630933. The next prime is 1616631043. The reversal of 1616630959 is 9590366161.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1616630959 - 2⁵ = 1616630927 is a prime.

It is a super-2 number, since 2×1616630959² = 5226991315194519362, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1616630459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 808315479 + 808315480.

It is an arithmetic number, because the mean of its divisors is an integer number (808315480).

Almost surely, 2^1616630959 is an apocalyptic number.

1616630959 is a deficient number, since it is larger than the sum of its proper divisors (1).

1616630959 is an equidigital number, since it uses as much as digits as its factorization.

1616630959 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 262440, while the sum is 46.

The square root of 1616630959 is about 40207.3495644764. The cubic root of 1616630959 is about 1173.6455699266.

The spelling of 1616630959 in words is "one billion, six hundred sixteen million, six hundred thirty thousand, nine hundred fifty-nine".