1616564341 has 12 divisors (see below), whose sum is σ = 1906257612. Its totient is φ = 1366642368.

The previous prime is 1616564311. The next prime is 1616564363. The reversal of 1616564341 is 1434656161.

It can be written as a sum of positive squares in 2 ways, for example, as 1198198225 + 418366116 = 34615^2 + 20454^2 .

It is not a de Polignac number, because 1616564341 - 2⁵ = 1616564309 is a prime.

It is a super-2 number, since 2×1616564341² = 5226560537185528562, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1616564341.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1616564311) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 222390 + ... + 229543.

It is an arithmetic number, because the mean of its divisors is an integer number (158854801).

Almost surely, 2^1616564341 is an apocalyptic number.

It is an amenable number.

1616564341 is a deficient number, since it is larger than the sum of its proper divisors (289693271).

1616564341 is an equidigital number, since it uses as much as digits as its factorization.

1616564341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452020 (or 452013 counting only the distinct ones).

The product of its digits is 51840, while the sum is 37.

The square root of 1616564341 is about 40206.5211253100. The cubic root of 1616564341 is about 1173.6294485407.

The spelling of 1616564341 in words is "one billion, six hundred sixteen million, five hundred sixty-four thousand, three hundred forty-one".