183016783536661 has 2 divisors, whose sum is σ = 183016783536662. Its totient is φ = 183016783536660.

The previous prime is 183016783536637. The next prime is 183016783536679. The reversal of 183016783536661 is 166635387610381.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 181904401993636 + 1112381543025 = 13487194^2 + 1054695^2 .

It is a cyclic number.

It is not a de Polignac number, because 183016783536661 - 2¹⁹ = 183016783012373 is a prime.

It is a super-2 number, since 2×183016783536661² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 183016783536593 and 183016783536602.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (183019783536661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 91508391768330 + 91508391768331.

It is an arithmetic number, because the mean of its divisors is an integer number (91508391768331).

Almost surely, 2^{183016783536661} is an apocalyptic number.

It is an amenable number.

183016783536661 is a deficient number, since it is larger than the sum of its proper divisors (1).

183016783536661 is an equidigital number, since it uses as much as digits as its factorization.

183016783536661 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 78382080, while the sum is 64.

The spelling of 183016783536661 in words is "one hundred eighty-three trillion, sixteen billion, seven hundred eighty-three million, five hundred thirty-six thousand, six hundred sixty-one".