20615616560603 has 16 divisors (see below), whose sum is σ = 21086312532480. Its totient is φ = 20149565805600.

The previous prime is 20615616560599. The next prime is 20615616560711. The reversal of 20615616560603 is 30606561651602.

It is a cyclic number.

It is not a de Polignac number, because 20615616560603 - 2² = 20615616560599 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20615616550603) 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, 5294408 + ... + 8322378.

It is an arithmetic number, because the mean of its divisors is an integer number (1317894533280).

Almost surely, 2^{20615616560603} is an apocalyptic number.

20615616560603 is a deficient number, since it is larger than the sum of its proper divisors (470695971877).

20615616560603 is a wasteful number, since it uses less digits than its factorization.

20615616560603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3028738.

The product of its (nonzero) digits is 1166400, while the sum is 47.

The spelling of 20615616560603 in words is "twenty trillion, six hundred fifteen billion, six hundred sixteen million, five hundred sixty thousand, six hundred three".