561402386616 has 32 divisors (see below), whose sum is σ = 1403528772240. Its totient is φ = 187131088128.

The previous prime is 561402386603. The next prime is 561402386647. The reversal of 561402386616 is 616683204165.

It is a congruent number.

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, 1702260 + ... + 2005116.

Almost surely, 2^561402386616 is an apocalyptic number.

It is an amenable number.

561402386616 is an abundant number, since it is smaller than the sum of its proper divisors (842126385624).

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

561402386616 is a wasteful number, since it uses less digits than its factorization.

561402386616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380103 (or 380099 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 48.

The spelling of 561402386616 in words is "five hundred sixty-one billion, four hundred two million, three hundred eighty-six thousand, six hundred sixteen".