166212053 has 8 divisors (see below), whose sum is σ = 198215808. Its totient is φ = 136273104.

The previous prime is 166212041. The next prime is 166212089. The reversal of 166212053 is 350212661.

166212053 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 166212053 - 2⁴ = 166212037 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166212353) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 516026 + ... + 516347.

It is an arithmetic number, because the mean of its divisors is an integer number (24776976).

Almost surely, 2^166212053 is an apocalyptic number.

It is an amenable number.

166212053 is a deficient number, since it is larger than the sum of its proper divisors (32003755).

166212053 is a wasteful number, since it uses less digits than its factorization.

166212053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1032403.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 166212053 is about 12892.3253527050. The cubic root of 166212053 is about 549.8203854264.

The spelling of 166212053 in words is "one hundred sixty-six million, two hundred twelve thousand, fifty-three".