166042532 has 24 divisors (see below), whose sum is σ = 300025656. Its totient is φ = 80345088.

The previous prime is 166042529. The next prime is 166042537. The reversal of 166042532 is 235240661.

It can be written as a sum of positive squares in 4 ways, for example, as 50608996 + 115433536 = 7114^2 + 10744^2 .

It is a junction number, because it is equal to n+sod(n) for n = 166042495 and 166042504.

It is not an unprimeable number, because it can be changed into a prime (166042537) 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, 25658 + ... + 31470.

It is an arithmetic number, because the mean of its divisors is an integer number (12501069).

Almost surely, 2^166042532 is an apocalyptic number.

It is an amenable number.

166042532 is a deficient number, since it is larger than the sum of its proper divisors (133983124).

166042532 is a wasteful number, since it uses less digits than its factorization.

166042532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6047 (or 6045 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 166042532 is about 12885.7491827212. The cubic root of 166042532 is about 549.6333997756.

The spelling of 166042532 in words is "one hundred sixty-six million, forty-two thousand, five hundred thirty-two".