1616240533 has 4 divisors (see below), whose sum is σ = 1616440320. Its totient is φ = 1616040748.

The previous prime is 1616240519. The next prime is 1616240537. The reversal of 1616240533 is 3350426161.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1616240533 - 2¹⁷ = 1616109461 is a prime.

It is a super-2 number, since 2×1616240533² = 5224466921024248178, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1616240495 and 1616240504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1616240537) 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 in 3 ways as a sum of consecutive naturals, for example, 87223 + ... + 104116.

It is an arithmetic number, because the mean of its divisors is an integer number (404110080).

Almost surely, 2^1616240533 is an apocalyptic number.

It is an amenable number.

1616240533 is a deficient number, since it is larger than the sum of its proper divisors (199787).

1616240533 is an equidigital number, since it uses as much as digits as its factorization.

1616240533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199786.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 1616240533 is about 40202.4941141716. The cubic root of 1616240533 is about 1173.5510815225.

Adding to 1616240533 its reverse (3350426161), we get a palindrome (4966666694).

The spelling of 1616240533 in words is "one billion, six hundred sixteen million, two hundred forty thousand, five hundred thirty-three".