561172228395 has 16 divisors (see below), whose sum is σ = 905821369632. Its totient is φ = 296643253760.

The previous prime is 561172228387. The next prime is 561172228399. The reversal of 561172228395 is 593822271165.

It is not a de Polignac number, because 561172228395 - 2³ = 561172228387 is a prime.

It is not an unprimeable number, because it can be changed into a prime (561172228399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 165535836 + ... + 165539225.

It is an arithmetic number, because the mean of its divisors is an integer number (56613835602).

Almost surely, 2^561172228395 is an apocalyptic number.

561172228395 is a deficient number, since it is larger than the sum of its proper divisors (344649141237).

561172228395 is a wasteful number, since it uses less digits than its factorization.

561172228395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331075182.

The product of its digits is 1814400, while the sum is 51.

The spelling of 561172228395 in words is "five hundred sixty-one billion, one hundred seventy-two million, two hundred twenty-eight thousand, three hundred ninety-five".