2261560311 has 16 divisors (see below), whose sum is σ = 3362833920. Its totient is φ = 1502138520.

The previous prime is 2261560283. The next prime is 2261560321. The reversal of 2261560311 is 1130651622.

It is not a de Polignac number, because 2261560311 - 2¹⁷ = 2261429239 is a prime.

It is a super-2 number, since 2×2261560311² = 10229310080580833442, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2261560321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 147225 + ... + 161858.

It is an arithmetic number, because the mean of its divisors is an integer number (210177120).

Almost surely, 2^2261560311 is an apocalyptic number.

2261560311 is a deficient number, since it is larger than the sum of its proper divisors (1101273609).

2261560311 is a wasteful number, since it uses less digits than its factorization.

2261560311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309363 (or 309357 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 2261560311 is about 47555.8651587793. The cubic root of 2261560311 is about 1312.6110560722.

The spelling of 2261560311 in words is "two billion, two hundred sixty-one million, five hundred sixty thousand, three hundred eleven".