264786066 has 48 divisors (see below), whose sum is σ = 612668160. Its totient is φ = 82464480.

The previous prime is 264786061. The next prime is 264786083. The reversal of 264786066 is 660687462.

It is a super-2 number, since 2×264786066² = 140223321495512712, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (264786061) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8001 + ... + 24363.

It is an arithmetic number, because the mean of its divisors is an integer number (12763920).

Almost surely, 2^264786066 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 264786066, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (306334080).

264786066 is an abundant number, since it is smaller than the sum of its proper divisors (347882094).

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

264786066 is a wasteful number, since it uses less digits than its factorization.

264786066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16431 (or 16428 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 45.

The square root of 264786066 is about 16272.2483388129. The cubic root of 264786066 is about 642.1429355368.

The spelling of 264786066 in words is "two hundred sixty-four million, seven hundred eighty-six thousand, sixty-six".