166084540 has 24 divisors (see below), whose sum is σ = 350310240. Its totient is φ = 66141888.

The previous prime is 166084531. The next prime is 166084559. The reversal of 166084540 is 45480661.

It is a junction number, because it is equal to n+sod(n) for n = 166084496 and 166084505.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13552 + ... + 22711.

It is an arithmetic number, because the mean of its divisors is an integer number (14596260).

Almost surely, 2^166084540 is an apocalyptic number.

166084540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

166084540 is an abundant number, since it is smaller than the sum of its proper divisors (184225700).

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

166084540 is a wasteful number, since it uses less digits than its factorization.

166084540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36501 (or 36499 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 166084540 is about 12887.3790973960. The cubic root of 166084540 is about 549.6797474447.

The spelling of 166084540 in words is "one hundred sixty-six million, eighty-four thousand, five hundred forty".