166343040 has 96 divisors (see below), whose sum is σ = 574423200. Its totient is φ = 44356608.

The previous prime is 166343017. The next prime is 166343041. The reversal of 166343040 is 40343661.

It is a tau number, because it is divible by the number of its divisors (96).

It is a junction number, because it is equal to n+sod(n) for n = 166342995 and 166343013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166343041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8680 + ... + 20199.

It is an arithmetic number, because the mean of its divisors is an integer number (5983575).

Almost surely, 2^166343040 is an apocalyptic number.

166343040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

166343040 is an abundant number, since it is smaller than the sum of its proper divisors (408080160).

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

166343040 is a wasteful number, since it uses less digits than its factorization.

166343040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28904 (or 28889 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 166343040 is about 12897.4043900314. The cubic root of 166343040 is about 549.9647801138.

It can be divided in two parts, 166 and 343040, that added together give a triangular number (343206 = T₈₂₈).

The spelling of 166343040 in words is "one hundred sixty-six million, three hundred forty-three thousand, forty".