166365340 has 12 divisors (see below), whose sum is σ = 349367256. Its totient is φ = 66546128.

The previous prime is 166365299. The next prime is 166365341. The reversal of 166365340 is 43563661.

It is a super-3 number, since 3×166365340³ (a number of 26 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 166365296 and 166365305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166365341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4159114 + ... + 4159153.

It is an arithmetic number, because the mean of its divisors is an integer number (29113938).

Almost surely, 2^166365340 is an apocalyptic number.

166365340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

166365340 is an abundant number, since it is smaller than the sum of its proper divisors (183001916).

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

166365340 is a wasteful number, since it uses less digits than its factorization.

166365340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8318276 (or 8318274 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 34.

The square root of 166365340 is about 12898.2688760934. The cubic root of 166365340 is about 549.9893551659.

The spelling of 166365340 in words is "one hundred sixty-six million, three hundred sixty-five thousand, three hundred forty".