166160550 has 72 divisors (see below), whose sum is σ = 437858136. Its totient is φ = 41692160.

The previous prime is 166160543. The next prime is 166160563. The reversal of 166160550 is 55061661.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 41434 + ... + 45266.

It is an arithmetic number, because the mean of its divisors is an integer number (6081363).

Almost surely, 2^166160550 is an apocalyptic number.

166160550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 166160550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (218929068).

166160550 is an abundant number, since it is smaller than the sum of its proper divisors (271697586).

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

166160550 is a wasteful number, since it uses less digits than its factorization.

166160550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3882 (or 3860 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 166160550 is about 12890.3277693005. The cubic root of 166160550 is about 549.7635898569.

The spelling of 166160550 in words is "one hundred sixty-six million, one hundred sixty thousand, five hundred fifty".