561551098429422 has 24 divisors (see below), whose sum is σ = 1217078225453376. Its totient is φ = 187124595037056.

The previous prime is 561551098429381. The next prime is 561551098429423. The reversal of 561551098429422 is 224924890155165.

It is a happy number.

561551098429422 is a `hidden beast` number, since 5 + 6 + 1 + 5 + 5 + 109 + 84 + 29 + 422 = 666.

It is a super-2 number, since 2×561551098429422² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 561551098429422.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561551098429423) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4925311363 + ... + 4925425374.

It is an arithmetic number, because the mean of its divisors is an integer number (50711592727224).

Almost surely, 2^{561551098429422} is an apocalyptic number.

561551098429422 is an abundant number, since it is smaller than the sum of its proper divisors (655527127023954).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

561551098429422 is a wasteful number, since it uses less digits than its factorization.

561551098429422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9850739912 (or 9850739909 counting only the distinct ones).

The product of its (nonzero) digits is 62208000, while the sum is 63.

The spelling of 561551098429422 in words is "five hundred sixty-one trillion, five hundred fifty-one billion, ninety-eight million, four hundred twenty-nine thousand, four hundred twenty-two".