166182534940 has 24 divisors (see below), whose sum is σ = 349880469120. Its totient is φ = 66302129088.

The previous prime is 166182534887. The next prime is 166182534941. The reversal of 166182534940 is 49435281661.

It is a super-3 number, since 3×166182534940³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166182534941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10672332 + ... + 10687891.

It is an arithmetic number, because the mean of its divisors is an integer number (14578352880).

Almost surely, 2^166182534940 is an apocalyptic number.

166182534940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

166182534940 is an abundant number, since it is smaller than the sum of its proper divisors (183697934180).

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

166182534940 is a wasteful number, since it uses less digits than its factorization.

166182534940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21360621 (or 21360619 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 49.

The spelling of 166182534940 in words is "one hundred sixty-six billion, one hundred eighty-two million, five hundred thirty-four thousand, nine hundred forty".