1616813017 has 4 divisors (see below), whose sum is σ = 1672565220. Its totient is φ = 1561060816.

The previous prime is 1616812987. The next prime is 1616813027. The reversal of 1616813017 is 7103186161.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 666878976 + 949934041 = 25824^2 + 30821^2 .

It is a cyclic number.

It is not a de Polignac number, because 1616813017 - 2²³ = 1608424409 is a prime.

It is a super-2 number, since 2×1616813017² = 5228168663881284578, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1616813027) 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, 27876058 + ... + 27876115.

It is an arithmetic number, because the mean of its divisors is an integer number (418141305).

Almost surely, 2^1616813017 is an apocalyptic number.

It is an amenable number.

1616813017 is a deficient number, since it is larger than the sum of its proper divisors (55752203).

1616813017 is an equidigital number, since it uses as much as digits as its factorization.

1616813017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55752202.

The product of its (nonzero) digits is 6048, while the sum is 34.

The square root of 1616813017 is about 40209.6134898111. The cubic root of 1616813017 is about 1173.6896252388.

Adding to 1616813017 its reverse (7103186161), we get a palindrome (8719999178).

The spelling of 1616813017 in words is "one billion, six hundred sixteen million, eight hundred thirteen thousand, seventeen".