166162540 has 24 divisors (see below), whose sum is σ = 349507872. Its totient is φ = 66357120.

The previous prime is 166162537. The next prime is 166162571. The reversal of 166162540 is 45261661.

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, 6520 + ... + 19360.

It is an arithmetic number, because the mean of its divisors is an integer number (14562828).

Almost surely, 2^166162540 is an apocalyptic number.

166162540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

166162540 is an abundant number, since it is smaller than the sum of its proper divisors (183345332).

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

166162540 is a wasteful number, since it uses less digits than its factorization.

166162540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13497 (or 13495 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 166162540 is about 12890.4049587280. The cubic root of 166162540 is about 549.7657845719.

The spelling of 166162540 in words is "one hundred sixty-six million, one hundred sixty-two thousand, five hundred forty".