666105352 has 64 divisors (see below), whose sum is σ = 1402349760. Its totient is φ = 293990400.

The previous prime is 666105347. The next prime is 666105359. The reversal of 666105352 is 253501666.

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (666105359) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1273363 + ... + 1273885.

It is an arithmetic number, because the mean of its divisors is an integer number (21911715).

Almost surely, 2^666105352 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 666105352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (701174880).

666105352 is an abundant number, since it is smaller than the sum of its proper divisors (736244408).

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

666105352 is a wasteful number, since it uses less digits than its factorization.

666105352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 934 (or 930 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 34.

The square root of 666105352 is about 25809.0168739532. The cubic root of 666105352 is about 873.3352191298.

The spelling of 666105352 in words is "six hundred sixty-six million, one hundred five thousand, three hundred fifty-two".