266056118106240 has 384 divisors, whose sum is σ = 1065323884383360. Its totient is φ = 55284387840000.

The previous prime is 266056118106221. The next prime is 266056118106253. The reversal of 266056118106240 is 42601811650662.

It is a tau number, because it is divible by the number of its divisors (384).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 266056118106240.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 80174761 + ... + 83427240.

It is an arithmetic number, because the mean of its divisors is an integer number (2774280948915).

Almost surely, 2^{266056118106240} is an apocalyptic number.

266056118106240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

266056118106240 is an abundant number, since it is smaller than the sum of its proper divisors (799267766277120).

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

266056118106240 is a wasteful number, since it uses less digits than its factorization.

266056118106240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163602052 (or 163602029 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 48.

The spelling of 266056118106240 in words is "two hundred sixty-six trillion, fifty-six billion, one hundred eighteen million, one hundred six thousand, two hundred forty".