5615661345 has 16 divisors (see below), whose sum is σ = 10268638080. Its totient is φ = 2567159424.

The previous prime is 5615661341. The next prime is 5615661367. The reversal of 5615661345 is 5431665165.

It is not a de Polignac number, because 5615661345 - 2² = 5615661341 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 5615661297 and 5615661306.

It is not an unprimeable number, because it can be changed into a prime (5615661341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26741140 + ... + 26741349.

It is an arithmetic number, because the mean of its divisors is an integer number (641789880).

Almost surely, 2^5615661345 is an apocalyptic number.

It is an amenable number.

5615661345 is a deficient number, since it is larger than the sum of its proper divisors (4652976735).

5615661345 is a wasteful number, since it uses less digits than its factorization.

5615661345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53482504.

The product of its digits is 324000, while the sum is 42.

The square root of 5615661345 is about 74937.7164383864. The cubic root of 5615661345 is about 1777.4619115475.

The spelling of 5615661345 in words is "five billion, six hundred fifteen million, six hundred sixty-one thousand, three hundred forty-five".