561456027632557 has 8 divisors (see below), whose sum is σ = 561828212126720. Its totient is φ = 561083908333680.

The previous prime is 561456027632551. The next prime is 561456027632567. The reversal of 561456027632557 is 755236720654165.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 561456027632557 - 2⁷ = 561456027632429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561456027632551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 936748 + ... + 33522970.

It is an arithmetic number, because the mean of its divisors is an integer number (70228526515840).

Almost surely, 2^{561456027632557} is an apocalyptic number.

It is an amenable number.

561456027632557 is a deficient number, since it is larger than the sum of its proper divisors (372184494163).

561456027632557 is a wasteful number, since it uses less digits than its factorization.

561456027632557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32597643.

The product of its (nonzero) digits is 317520000, while the sum is 64.

The spelling of 561456027632557 in words is "five hundred sixty-one trillion, four hundred fifty-six billion, twenty-seven million, six hundred thirty-two thousand, five hundred fifty-seven".