166053013 has 6 divisors (see below), whose sum is σ = 193163766. Its totient is φ = 142331112.

The previous prime is 166053011. The next prime is 166053029. The reversal of 166053013 is 310350661.

166053013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 164814244 + 1238769 = 12838^2 + 1113^2 .

It is not a de Polignac number, because 166053013 - 2¹ = 166053011 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 (166053011) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1694370 + ... + 1694467.

It is an arithmetic number, because the mean of its divisors is an integer number (32193961).

Almost surely, 2^166053013 is an apocalyptic number.

It is an amenable number.

166053013 is a deficient number, since it is larger than the sum of its proper divisors (27110753).

166053013 is an equidigital number, since it uses as much as digits as its factorization.

166053013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3388851 (or 3388844 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 166053013 is about 12886.1558658896. The cubic root of 166053013 is about 549.6449642552.

The spelling of 166053013 in words is "one hundred sixty-six million, fifty-three thousand, thirteen".