266402160 has 60 divisors (see below), whose sum is σ = 894669672. Its totient is φ = 71040384.

The previous prime is 266402159. The next prime is 266402167. The reversal of 266402160 is 61204662.

It is a happy number.

266402160 is a `hidden beast` number, since 2 + 6 + 640 + 2 + 16 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (60).

It is a super-2 number, since 2×266402160² = 141940221705331200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266402167) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 184282 + ... + 185721.

Almost surely, 2^266402160 is an apocalyptic number.

266402160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

266402160 is an abundant number, since it is smaller than the sum of its proper divisors (628267512).

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

266402160 is a wasteful number, since it uses less digits than its factorization.

266402160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370022 (or 370013 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 266402160 is about 16321.8307796644. The cubic root of 266402160 is about 643.4467040188.

The spelling of 266402160 in words is "two hundred sixty-six million, four hundred two thousand, one hundred sixty".