166534053 has 16 divisors (see below), whose sum is σ = 264800256. Its totient is φ = 91024560.

The previous prime is 166534021. The next prime is 166534063. The reversal of 166534053 is 350435661.

It is not a de Polignac number, because 166534053 - 2⁵ = 166534021 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166534063) 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, 171913 + ... + 172878.

It is an arithmetic number, because the mean of its divisors is an integer number (16550016).

Almost surely, 2^166534053 is an apocalyptic number.

It is an amenable number.

166534053 is a deficient number, since it is larger than the sum of its proper divisors (98266203).

166534053 is a wasteful number, since it uses less digits than its factorization.

166534053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344824.

The product of its (nonzero) digits is 32400, while the sum is 33.

The square root of 166534053 is about 12904.8073600500. The cubic root of 166534053 is about 550.1752091928.

It can be divided in two parts, 16653 and 4053, that added together give a triangular number (20706 = T₂₀₃).

The spelling of 166534053 in words is "one hundred sixty-six million, five hundred thirty-four thousand, fifty-three".