18966527229 has 16 divisors (see below), whose sum is σ = 28112505344. Its totient is φ = 11295201600.

The previous prime is 18966527219. The next prime is 18966527311. The reversal of 18966527229 is 92272566981.

It is not a de Polignac number, because 18966527229 - 2⁷ = 18966527101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18966527219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7842682 + ... + 7845099.

It is an arithmetic number, because the mean of its divisors is an integer number (1757031584).

Almost surely, 2^18966527229 is an apocalyptic number.

It is an amenable number.

18966527229 is a deficient number, since it is larger than the sum of its proper divisors (9145978115).

18966527229 is a wasteful number, since it uses less digits than its factorization.

18966527229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15687828.

The product of its digits is 6531840, while the sum is 57.

The spelling of 18966527229 in words is "eighteen billion, nine hundred sixty-six million, five hundred twenty-seven thousand, two hundred twenty-nine".