2600103561 has 16 divisors (see below), whose sum is σ = 3833780160. Its totient is φ = 1554232320.

The previous prime is 2600103557. The next prime is 2600103577. The reversal of 2600103561 is 1653010062.

It is not a de Polignac number, because 2600103561 - 2² = 2600103557 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2600103061) 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, 537256 + ... + 542073.

It is an arithmetic number, because the mean of its divisors is an integer number (239611260).

Almost surely, 2^2600103561 is an apocalyptic number.

It is an amenable number.

2600103561 is a deficient number, since it is larger than the sum of its proper divisors (1233676599).

2600103561 is a wasteful number, since it uses less digits than its factorization.

2600103561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1079416.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 2600103561 is about 50991.2106249695. The cubic root of 2600103561 is about 1375.0871236916.

The spelling of 2600103561 in words is "two billion, six hundred million, one hundred three thousand, five hundred sixty-one".