166200540 has 96 divisors (see below), whose sum is σ = 509725440. Its totient is φ = 40128000.

The previous prime is 166200533. The next prime is 166200569. The reversal of 166200540 is 45002661.

It is a self number, because there is not a number n which added to its sum of digits gives 166200540.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 276240 + ... + 276840.

It is an arithmetic number, because the mean of its divisors is an integer number (5309640).

Almost surely, 2^166200540 is an apocalyptic number.

166200540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 166200540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (254862720).

166200540 is an abundant number, since it is smaller than the sum of its proper divisors (343524900).

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

166200540 is a wasteful number, since it uses less digits than its factorization.

166200540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1043 (or 1041 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 166200540 is about 12891.8788390211. The cubic root of 166200540 is about 549.8076903418.

The spelling of 166200540 in words is "one hundred sixty-six million, two hundred thousand, five hundred forty".