266326160 has 40 divisors (see below), whose sum is σ = 634318776. Its totient is φ = 103930880.

The previous prime is 266326157. The next prime is 266326163. The reversal of 266326160 is 61623662.

It is an interprime number because it is at equal distance from previous prime (266326157) and next prime (266326163).

It can be written as a sum of positive squares in 4 ways, for example, as 2458624 + 263867536 = 1568^2 + 16244^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (266326163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37319 + ... + 43878.

Almost surely, 2^266326160 is an apocalyptic number.

266326160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

266326160 is an abundant number, since it is smaller than the sum of its proper divisors (367992616).

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

266326160 is a wasteful number, since it uses less digits than its factorization.

266326160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81251 (or 81245 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 32.

The square root of 266326160 is about 16319.5024433958. The cubic root of 266326160 is about 643.3855100698.

The spelling of 266326160 in words is "two hundred sixty-six million, three hundred twenty-six thousand, one hundred sixty".