264156066 has 56 divisors (see below), whose sum is σ = 600188160. Its totient is φ = 87147576.

The previous prime is 264156043. The next prime is 264156077. The reversal of 264156066 is 660651462.

It is a happy number.

264156066 is a `hidden beast` number, since 2 + 6 + 41 + 5 + 606 + 6 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 264156066.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 149295 + ... + 151053.

Almost surely, 2^264156066 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 264156066, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (300094080).

264156066 is an abundant number, since it is smaller than the sum of its proper divisors (336032094).

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

264156066 is a wasteful number, since it uses less digits than its factorization.

264156066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1882 (or 1867 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 264156066 is about 16252.8786988644. The cubic root of 264156066 is about 641.6332519696.

The spelling of 264156066 in words is "two hundred sixty-four million, one hundred fifty-six thousand, sixty-six".