52136366661 has 8 divisors (see below), whose sum is σ = 77239061760. Its totient is φ = 34757577756.

The previous prime is 52136366621. The next prime is 52136366687. The reversal of 52136366661 is 16666363125.

It is not a de Polignac number, because 52136366661 - 2¹⁹ = 52135842373 is a prime.

It is a super-2 number, since 2×52136366661² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52136366621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 965488245 + ... + 965488298.

It is an arithmetic number, because the mean of its divisors is an integer number (9654882720).

Almost surely, 2^52136366661 is an apocalyptic number.

It is an amenable number.

52136366661 is a deficient number, since it is larger than the sum of its proper divisors (25102695099).

52136366661 is a wasteful number, since it uses less digits than its factorization.

52136366661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1930976552 (or 1930976546 counting only the distinct ones).

The product of its digits is 699840, while the sum is 45.

The spelling of 52136366661 in words is "fifty-two billion, one hundred thirty-six million, three hundred sixty-six thousand, six hundred sixty-one".