166653126 has 40 divisors (see below), whose sum is σ = 374807664. Its totient is φ = 55345680.

The previous prime is 166653121. The next prime is 166653163. The reversal of 166653126 is 621356661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166653121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 45711 + ... + 49221.

Almost surely, 2^166653126 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 166653126, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (187403832).

166653126 is an abundant number, since it is smaller than the sum of its proper divisors (208154538).

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

166653126 is a wasteful number, since it uses less digits than its factorization.

166653126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3818 (or 3809 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

The square root of 166653126 is about 12909.4200489410. The cubic root of 166653126 is about 550.3063043134.

It can be divided in two parts, 16665 and 3126, that added together give a palindrome (19791).

The spelling of 166653126 in words is "one hundred sixty-six million, six hundred fifty-three thousand, one hundred twenty-six".