12166400550183 has 64 divisors (see below), whose sum is σ = 18888441643008. Its totient is φ = 6883972945920.

The previous prime is 12166400550181. The next prime is 12166400550247. The reversal of 12166400550183 is 38105500466121.

It is not a de Polignac number, because 12166400550183 - 2¹ = 12166400550181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12166400550181) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 535552341 + ... + 535575057.

It is an arithmetic number, because the mean of its divisors is an integer number (295131900672).

Almost surely, 2^{12166400550183} is an apocalyptic number.

12166400550183 is a deficient number, since it is larger than the sum of its proper divisors (6722041092825).

12166400550183 is a wasteful number, since it uses less digits than its factorization.

12166400550183 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30392.

The product of its (nonzero) digits is 172800, while the sum is 42.

The spelling of 12166400550183 in words is "twelve trillion, one hundred sixty-six billion, four hundred million, five hundred fifty thousand, one hundred eighty-three".