711561216602061 has 12 divisors (see below), whose sum is σ = 1174640738517792. Its totient is φ = 406606409486856.

The previous prime is 711561216602023. The next prime is 711561216602113. The reversal of 711561216602061 is 160206612165117.

711561216602061 is a `hidden beast` number, since 7 + 1 + 1 + 5 + 612 + 1 + 6 + 6 + 0 + 20 + 6 + 1 = 666.

It is not a de Polignac number, because 711561216602061 - 2¹⁵ = 711561216569293 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 711561216601998 and 711561216602016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (711561216612061) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5647311242811 + ... + 5647311242936.

It is an arithmetic number, because the mean of its divisors is an integer number (97886728209816).

Almost surely, 2^{711561216602061} is an apocalyptic number.

It is an amenable number.

711561216602061 is a deficient number, since it is larger than the sum of its proper divisors (463079521915731).

711561216602061 is a wasteful number, since it uses less digits than its factorization.

711561216602061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11294622485760 (or 11294622485757 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 45.

Adding to 711561216602061 its reverse (160206612165117), we get a palindrome (871767828767178).

The spelling of 711561216602061 in words is "seven hundred eleven trillion, five hundred sixty-one billion, two hundred sixteen million, six hundred two thousand, sixty-one".