561616115876 has 24 divisors (see below), whose sum is σ = 984019994496. Its totient is φ = 280467678240.

The previous prime is 561616115833. The next prime is 561616115969. The reversal of 561616115876 is 678511616165.

It is a super-2 number, since 2×561616115876² (a number of 24 digits) contains 22 as substring.

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, 20843525 + ... + 20870451.

It is an arithmetic number, because the mean of its divisors is an integer number (41000833104).

Almost surely, 2^561616115876 is an apocalyptic number.

It is an amenable number.

561616115876 is a deficient number, since it is larger than the sum of its proper divisors (422403878620).

561616115876 is a wasteful number, since it uses less digits than its factorization.

561616115876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33059 (or 33057 counting only the distinct ones).

The product of its digits is 1814400, while the sum is 53.

The spelling of 561616115876 in words is "five hundred sixty-one billion, six hundred sixteen million, one hundred fifteen thousand, eight hundred seventy-six".