561008340451 has 12 divisors (see below), whose sum is σ = 613380310608. Its totient is φ = 512826129504.

The previous prime is 561008340439. The next prime is 561008340461. The reversal of 561008340451 is 154043800165.

It is a happy number.

It is not a de Polignac number, because 561008340451 - 2⁵ = 561008340419 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 561008340451.

It is not an unprimeable number, because it can be changed into a prime (561008340461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16097040 + ... + 16131853.

It is an arithmetic number, because the mean of its divisors is an integer number (51115025884).

Almost surely, 2^561008340451 is an apocalyptic number.

561008340451 is a deficient number, since it is larger than the sum of its proper divisors (52371970157).

561008340451 is a wasteful number, since it uses less digits than its factorization.

561008340451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32229022 (or 32229009 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 37.

The spelling of 561008340451 in words is "five hundred sixty-one billion, eight million, three hundred forty thousand, four hundred fifty-one".