561646252161562 has 16 divisors (see below), whose sum is σ = 879230221744320. Its totient is φ = 268573171027392.

The previous prime is 561646252161523. The next prime is 561646252161571. The reversal of 561646252161562 is 265161252646165.

It is a junction number, because it is equal to n+sod(n) for n = 561646252161497 and 561646252161506.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 914551512 + ... + 915165427.

It is an arithmetic number, because the mean of its divisors is an integer number (54951888859020).

Almost surely, 2^{561646252161562} is an apocalyptic number.

561646252161562 is a deficient number, since it is larger than the sum of its proper divisors (317583969582758).

561646252161562 is a wasteful number, since it uses less digits than its factorization.

561646252161562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1829723637.

The product of its digits is 31104000, while the sum is 58.

The spelling of 561646252161562 in words is "five hundred sixty-one trillion, six hundred forty-six billion, two hundred fifty-two million, one hundred sixty-one thousand, five hundred sixty-two".