166276650 has 48 divisors (see below), whose sum is σ = 413928864. Its totient is φ = 44172480.

The previous prime is 166276613. The next prime is 166276661. The reversal of 166276650 is 56672661.

166276650 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 166276599 and 166276608.

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, 40492 + ... + 44408.

It is an arithmetic number, because the mean of its divisors is an integer number (8623518).

Almost surely, 2^166276650 is an apocalyptic number.

166276650 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 166276650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (206964432).

166276650 is an abundant number, since it is smaller than the sum of its proper divisors (247652214).

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

166276650 is a wasteful number, since it uses less digits than its factorization.

166276650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4215 (or 4210 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 39.

The square root of 166276650 is about 12894.8303594890. The cubic root of 166276650 is about 549.8916039827.

The spelling of 166276650 in words is "one hundred sixty-six million, two hundred seventy-six thousand, six hundred fifty".