166531662 has 24 divisors (see below), whose sum is σ = 393620760. Its totient is φ = 50464080.

The previous prime is 166531657. The next prime is 166531667. The reversal of 166531662 is 266135661.

166531662 is a `hidden beast` number, since 1 + 66 + 531 + 6 + 62 = 666.

166531662 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (166531657) and next prime (166531667).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166531667) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 420337 + ... + 420732.

It is an arithmetic number, because the mean of its divisors is an integer number (16400865).

Almost surely, 2^166531662 is an apocalyptic number.

166531662 is an abundant number, since it is smaller than the sum of its proper divisors (227089098).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

166531662 is a wasteful number, since it uses less digits than its factorization.

166531662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 841088 (or 841085 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

The square root of 166531662 is about 12904.7147198224. The cubic root of 166531662 is about 550.1725761473.

The spelling of 166531662 in words is "one hundred sixty-six million, five hundred thirty-one thousand, six hundred sixty-two".