266416080 has 80 divisors (see below), whose sum is σ = 943880064. Its totient is φ = 60894720.

The previous prime is 266416079. The next prime is 266416099. The reversal of 266416080 is 80614662.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77611 + ... + 80970.

Almost surely, 2^266416080 is an apocalyptic number.

266416080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

266416080 is an abundant number, since it is smaller than the sum of its proper divisors (677463984).

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

266416080 is a wasteful number, since it uses less digits than its factorization.

266416080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158604 (or 158598 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 266416080 is about 16322.2571968463. The cubic root of 266416080 is about 643.4579109125.

The spelling of 266416080 in words is "two hundred sixty-six million, four hundred sixteen thousand, eighty".