561167283945 has 16 divisors (see below), whose sum is σ = 897914305152. Its totient is φ = 299273667840.

The previous prime is 561167283917. The next prime is 561167283947. The reversal of 561167283945 is 549382761165.

It is not a de Polignac number, because 561167283945 - 2⁶ = 561167283881 is a prime.

It is not an unprimeable number, because it can be changed into a prime (561167283947) 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, 670557 + ... + 1253786.

It is an arithmetic number, because the mean of its divisors is an integer number (56119644072).

Almost surely, 2^561167283945 is an apocalyptic number.

It is an amenable number.

561167283945 is a deficient number, since it is larger than the sum of its proper divisors (336747021207).

561167283945 is a wasteful number, since it uses less digits than its factorization.

561167283945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1943792.

The product of its digits is 10886400, while the sum is 57.

The spelling of 561167283945 in words is "five hundred sixty-one billion, one hundred sixty-seven million, two hundred eighty-three thousand, nine hundred forty-five".