1616689933 has 2 divisors, whose sum is σ = 1616689934. Its totient is φ = 1616689932.

The previous prime is 1616689889. The next prime is 1616689939. The reversal of 1616689933 is 3399866161.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1013594569 + 603095364 = 31837^2 + 24558^2 .

It is a cyclic number.

It is not a de Polignac number, because 1616689933 - 2¹³ = 1616681741 is a prime.

It is a super-2 number, since 2×1616689933² = 5227372678927088978, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1616689939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 808344966 + 808344967.

It is an arithmetic number, because the mean of its divisors is an integer number (808344967).

Almost surely, 2^1616689933 is an apocalyptic number.

It is an amenable number.

1616689933 is a deficient number, since it is larger than the sum of its proper divisors (1).

1616689933 is an equidigital number, since it uses as much as digits as its factorization.

1616689933 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1259712, while the sum is 52.

The square root of 1616689933 is about 40208.0829311719. The cubic root of 1616689933 is about 1173.6598411144.

The spelling of 1616689933 in words is "one billion, six hundred sixteen million, six hundred eighty-nine thousand, nine hundred thirty-three".