534355566561 has 24 divisors (see below), whose sum is σ = 772520112000. Its totient is φ = 355926501216.

The previous prime is 534355566557. The next prime is 534355566631. The reversal of 534355566561 is 165665553435.

534355566561 is a `hidden beast` number, since 5 + 3 + 4 + 35 + 556 + 6 + 56 + 1 = 666.

It is not a de Polignac number, because 534355566561 - 2² = 534355566557 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 534355566498 and 534355566507.

It is not an unprimeable number, because it can be changed into a prime (534355566961) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 83529015 + ... + 83535411.

It is an arithmetic number, because the mean of its divisors is an integer number (32188338000).

Almost surely, 2^534355566561 is an apocalyptic number.

It is an amenable number.

534355566561 is a deficient number, since it is larger than the sum of its proper divisors (238164545439).

534355566561 is a wasteful number, since it uses less digits than its factorization.

534355566561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13045 (or 13042 counting only the distinct ones).

The product of its digits is 24300000, while the sum is 54.

The spelling of 534355566561 in words is "five hundred thirty-four billion, three hundred fifty-five million, five hundred sixty-six thousand, five hundred sixty-one".