266536064 has 32 divisors (see below), whose sum is σ = 562229100. Its totient is φ = 125427712.

The previous prime is 266536063. The next prime is 266536079. The reversal of 266536064 is 460635662.

It can be written as a sum of positive squares in 2 ways, for example, as 243110464 + 23425600 = 15592^2 + 4840^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×266536064² = 142082946825224192, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (266536063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59069 + ... + 63420.

Almost surely, 2^266536064 is an apocalyptic number.

It is an amenable number.

266536064 is an abundant number, since it is smaller than the sum of its proper divisors (295693036).

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

266536064 is a wasteful number, since it uses less digits than its factorization.

266536064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122520 (or 122508 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 38.

The square root of 266536064 is about 16325.9322551577. The cubic root of 266536064 is about 643.5544930043.

The spelling of 266536064 in words is "two hundred sixty-six million, five hundred thirty-six thousand, sixty-four".