5580111961 has 4 divisors (see below), whose sum is σ = 5581662592. Its totient is φ = 5578561332.

The previous prime is 5580111913. The next prime is 5580111973. The reversal of 5580111961 is 1691110855.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5580111961 - 2²⁵ = 5546557529 is a prime.

It is a super-2 number, since 2×5580111961² = 62275298994590531042, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5580111961.

It is not an unprimeable number, because it can be changed into a prime (5580111461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 769905 + ... + 777118.

It is an arithmetic number, because the mean of its divisors is an integer number (1395415648).

Almost surely, 2^5580111961 is an apocalyptic number.

It is an amenable number.

5580111961 is a deficient number, since it is larger than the sum of its proper divisors (1550631).

5580111961 is a wasteful number, since it uses less digits than its factorization.

5580111961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1550630.

The product of its (nonzero) digits is 10800, while the sum is 37.

The square root of 5580111961 is about 74700.1469945006. The cubic root of 5580111961 is about 1773.7032873781.

The spelling of 5580111961 in words is "five billion, five hundred eighty million, one hundred eleven thousand, nine hundred sixty-one".