266464323776880 has 120 divisors (see below), whose sum is σ = 941974758663120. Its totient is φ = 67317302845440.

The previous prime is 266464323776879. The next prime is 266464323776929. The reversal of 266464323776880 is 88677323464662.

266464323776880 is a `hidden beast` number, since 2 + 6 + 6 + 46 + 432 + 3 + 7 + 76 + 8 + 80 = 666.

266464323776880 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (120).

It is a super-2 number, since 2×266464323776880² (a number of 30 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a junction number, because it is equal to n+sod(n) for n = 266464323776799 and 266464323776808.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9739179441 + ... + 9739206800.

It is an arithmetic number, because the mean of its divisors is an integer number (7849789655526).

Almost surely, 2^{266464323776880} is an apocalyptic number.

266464323776880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

266464323776880 is an abundant number, since it is smaller than the sum of its proper divisors (675510434886240).

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

266464323776880 is a wasteful number, since it uses less digits than its factorization.

266464323776880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19478386279 (or 19478386270 counting only the distinct ones).

The product of its (nonzero) digits is 2341011456, while the sum is 72.

The spelling of 266464323776880 in words is "two hundred sixty-six trillion, four hundred sixty-four billion, three hundred twenty-three million, seven hundred seventy-six thousand, eight hundred eighty".