2095644561 has 4 divisors (see below), whose sum is σ = 2794192752. Its totient is φ = 1397096372.

The previous prime is 2095644533. The next prime is 2095644583. The reversal of 2095644561 is 1654465902.

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 2095644561 - 2¹⁷ = 2095513489 is a prime.

It is a super-2 number, since 2×2095644561² = 8783452252097765442, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2095648561) 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, 349274091 + ... + 349274096.

It is an arithmetic number, because the mean of its divisors is an integer number (698548188).

Almost surely, 2^2095644561 is an apocalyptic number.

It is an amenable number.

2095644561 is a deficient number, since it is larger than the sum of its proper divisors (698548191).

2095644561 is an equidigital number, since it uses as much as digits as its factorization.

2095644561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 698548190.

The product of its (nonzero) digits is 259200, while the sum is 42.

The square root of 2095644561 is about 45778.2105482510. The cubic root of 2095644561 is about 1279.6932372379.

The spelling of 2095644561 in words is "two billion, ninety-five million, six hundred forty-four thousand, five hundred sixty-one".