1616651459 has 2 divisors, whose sum is σ = 1616651460. Its totient is φ = 1616651458.

The previous prime is 1616651419. The next prime is 1616651467. The reversal of 1616651459 is 9541566161.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1616651459 - 2⁸ = 1616651203 is a prime.

It is a super-2 number, since 2×1616651459² = 5227123879773657362, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1616651419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 808325729 + 808325730.

It is an arithmetic number, because the mean of its divisors is an integer number (808325730).

Almost surely, 2^1616651459 is an apocalyptic number.

1616651459 is a deficient number, since it is larger than the sum of its proper divisors (1).

1616651459 is an equidigital number, since it uses as much as digits as its factorization.

1616651459 is an evil number, because the sum of its binary digits is even.

The product of its digits is 194400, while the sum is 44.

The square root of 1616651459 is about 40207.6044921853. The cubic root of 1616651459 is about 1173.6505307851.

The spelling of 1616651459 in words is "one billion, six hundred sixteen million, six hundred fifty-one thousand, four hundred fifty-nine".