166264212213213 has 32 divisors (see below), whose sum is σ = 224205464904576. Its totient is φ = 109590425100288.

The previous prime is 166264212213157. The next prime is 166264212213259. The reversal of 166264212213213 is 312312212462661.

It is not a de Polignac number, because 166264212213213 - 2⁹ = 166264212212701 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166264212213013) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 270845481 + ... + 271458657.

It is an arithmetic number, because the mean of its divisors is an integer number (7006420778268).

Almost surely, 2^{166264212213213} is an apocalyptic number.

It is an amenable number.

166264212213213 is a deficient number, since it is larger than the sum of its proper divisors (57941252691363).

166264212213213 is a wasteful number, since it uses less digits than its factorization.

166264212213213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 616253.

The product of its digits is 248832, while the sum is 42.

Adding to 166264212213213 its reverse (312312212462661), we get a palindrome (478576424675874).

The spelling of 166264212213213 in words is "one hundred sixty-six trillion, two hundred sixty-four billion, two hundred twelve million, two hundred thirteen thousand, two hundred thirteen".