166348770 has 64 divisors (see below), whose sum is σ = 458701056. Its totient is φ = 37820160.

The previous prime is 166348751. The next prime is 166348771. The reversal of 166348770 is 77843661.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (166348771) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 39360 + ... + 43380.

It is an arithmetic number, because the mean of its divisors is an integer number (7167204).

Almost surely, 2^166348770 is an apocalyptic number.

166348770 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 166348770, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (229350528).

166348770 is an abundant number, since it is smaller than the sum of its proper divisors (292352286).

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

166348770 is a wasteful number, since it uses less digits than its factorization.

166348770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4235.

The product of its (nonzero) digits is 169344, while the sum is 42.

The square root of 166348770 is about 12897.6265258380. The cubic root of 166348770 is about 549.9710948997.

The spelling of 166348770 in words is "one hundred sixty-six million, three hundred forty-eight thousand, seven hundred seventy".