166660632 has 64 divisors (see below), whose sum is σ = 467337600. Its totient is φ = 55026720.

The previous prime is 166660631. The next prime is 166660633. The reversal of 166660632 is 236066661.

It is an interprime number because it is at equal distance from previous prime (166660631) and next prime (166660633).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166660631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19507 + ... + 26717.

It is an arithmetic number, because the mean of its divisors is an integer number (7302150).

Almost surely, 2^166660632 is an apocalyptic number.

166660632 is a gapful number since it is divisible by the number (12) 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 166660632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (233668800).

166660632 is an abundant number, since it is smaller than the sum of its proper divisors (300676968).

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

166660632 is a wasteful number, since it uses less digits than its factorization.

166660632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7333 (or 7323 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 36.

The square root of 166660632 is about 12909.7107636074. The cubic root of 166660632 is about 550.3145660588.

The spelling of 166660632 in words is "one hundred sixty-six million, six hundred sixty thousand, six hundred thirty-two".