166032740 has 12 divisors (see below), whose sum is σ = 348668796. Its totient is φ = 66413088.

The previous prime is 166032721. The next prime is 166032781. The reversal of 166032740 is 47230661.

It can be written as a sum of positive squares in 2 ways, for example, as 127418944 + 38613796 = 11288^2 + 6214^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4150799 + ... + 4150838.

It is an arithmetic number, because the mean of its divisors is an integer number (29055733).

Almost surely, 2^166032740 is an apocalyptic number.

166032740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

166032740 is an abundant number, since it is smaller than the sum of its proper divisors (182636056).

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

166032740 is a wasteful number, since it uses less digits than its factorization.

166032740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8301646 (or 8301644 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 166032740 is about 12885.3692224942. The cubic root of 166032740 is about 549.6225950820.

The spelling of 166032740 in words is "one hundred sixty-six million, thirty-two thousand, seven hundred forty".