181660010627 has 2 divisors, whose sum is σ = 181660010628. Its totient is φ = 181660010626.

The previous prime is 181660010611. The next prime is 181660010657. The reversal of 181660010627 is 726010066181.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 181660010627 - 2⁴ = 181660010611 is a prime.

It is a super-2 number, since 2×181660010627² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (181660010657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 90830005313 + 90830005314.

It is an arithmetic number, because the mean of its divisors is an integer number (90830005314).

Almost surely, 2^181660010627 is an apocalyptic number.

181660010627 is a deficient number, since it is larger than the sum of its proper divisors (1).

181660010627 is an equidigital number, since it uses as much as digits as its factorization.

181660010627 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24192, while the sum is 38.

The spelling of 181660010627 in words is "one hundred eighty-one billion, six hundred sixty million, ten thousand, six hundred twenty-seven".