186668530241 has 4 divisors (see below), whose sum is σ = 187813736112. Its totient is φ = 185523324372.

The previous prime is 186668530211. The next prime is 186668530249. The reversal of 186668530241 is 142035866681.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 142035866681 = 31 ⋅4581802151.

It is a cyclic number.

It is not a de Polignac number, because 186668530241 - 2¹⁸ = 186668268097 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 186668530241.

It is not an unprimeable number, because it can be changed into a prime (186668530249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 572602691 + ... + 572603016.

It is an arithmetic number, because the mean of its divisors is an integer number (46953434028).

Almost surely, 2^186668530241 is an apocalyptic number.

It is an amenable number.

186668530241 is a deficient number, since it is larger than the sum of its proper divisors (1145205871).

186668530241 is a wasteful number, since it uses less digits than its factorization.

186668530241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1145205870.

The product of its (nonzero) digits is 1658880, while the sum is 50.

The spelling of 186668530241 in words is "one hundred eighty-six billion, six hundred sixty-eight million, five hundred thirty thousand, two hundred forty-one".