2516044645 has 8 divisors (see below), whose sum is σ = 3060613656. Its totient is φ = 1985262336.

The previous prime is 2516044639. The next prime is 2516044697. The reversal of 2516044645 is 5464406152.

It can be written as a sum of positive squares in 4 ways, for example, as 748514881 + 1767529764 = 27359^2 + 42042^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2516044645 - 2¹¹ = 2516042597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3446272 + ... + 3447001.

It is an arithmetic number, because the mean of its divisors is an integer number (382576707).

Almost surely, 2^2516044645 is an apocalyptic number.

It is an amenable number.

2516044645 is a deficient number, since it is larger than the sum of its proper divisors (544569011).

2516044645 is an equidigital number, since it uses as much as digits as its factorization.

2516044645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6893351.

The product of its (nonzero) digits is 115200, while the sum is 37.

The square root of 2516044645 is about 50160.1898421447. The cubic root of 2516044645 is about 1360.1060768255.

The spelling of 2516044645 in words is "two billion, five hundred sixteen million, forty-four thousand, six hundred forty-five".