156666352 has 40 divisors (see below), whose sum is σ = 317211840. Its totient is φ = 74860800.

The previous prime is 156666337. The next prime is 156666353. The reversal of 156666352 is 253666651.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156666353) 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 7 ways as a sum of consecutive naturals, for example, 45193 + ... + 48535.

It is an arithmetic number, because the mean of its divisors is an integer number (7930296).

Almost surely, 2^156666352 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 156666352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (158605920).

156666352 is an abundant number, since it is smaller than the sum of its proper divisors (160545488).

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

156666352 is a wasteful number, since it uses less digits than its factorization.

156666352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3481 (or 3475 counting only the distinct ones).

The product of its digits is 194400, while the sum is 40.

The square root of 156666352 is about 12516.6430004215. The cubic root of 156666352 is about 539.0866499135.

The spelling of 156666352 in words is "one hundred fifty-six million, six hundred sixty-six thousand, three hundred fifty-two".