166126716 has 72 divisors (see below), whose sum is σ = 491114624. Its totient is φ = 46357920.

The previous prime is 166126693. The next prime is 166126801. The reversal of 166126716 is 617621661.

It is a super-3 number, since 3×166126716³ (a number of 26 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3171 + ... + 18501.

Almost surely, 2^166126716 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 166126716, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (245557312).

166126716 is an abundant number, since it is smaller than the sum of its proper divisors (324987908).

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

166126716 is a wasteful number, since it uses less digits than its factorization.

166126716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15391 (or 15386 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 166126716 is about 12889.0153231347. The cubic root of 166126716 is about 549.7262726077.

The spelling of 166126716 in words is "one hundred sixty-six million, one hundred twenty-six thousand, seven hundred sixteen".