266980927868928 has 3120 divisors, whose sum is σ = 1044755953274880. Its totient is φ = 67449222070272.

The previous prime is 266980927868873. The next prime is 266980927868983. The reversal of 266980927868928 is 829868729089662.

266980927868928 is a `hidden beast` number, since 266 + 98 + 0 + 92 + 7 + 86 + 89 + 28 = 666.

It is an interprime number because it is at equal distance from previous prime (266980927868873) and next prime (266980927868983).

It is an unprimeable number.

It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 2102212030401 + ... + 2102212030527.

Almost surely, 2^{266980927868928} is an apocalyptic number.

266980927868928 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 266980927868928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (522377976637440).

266980927868928 is an abundant number, since it is smaller than the sum of its proper divisors (777775025405952).

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

266980927868928 is an frugal number, since it uses more digits than its factorization.

266980927868928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240 (or 181 counting only the distinct ones).

The product of its (nonzero) digits is 36118462464, while the sum is 90.

The spelling of 266980927868928 in words is "two hundred sixty-six trillion, nine hundred eighty billion, nine hundred twenty-seven million, eight hundred sixty-eight thousand, nine hundred twenty-eight".