266128020480 has 1408 divisors, whose sum is σ = 1109270937600. Its totient is φ = 52999225344.

The previous prime is 266128020419. The next prime is 266128020541. The reversal of 266128020480 is 84020821662.

It is an interprime number because it is at equal distance from previous prime (266128020419) and next prime (266128020541).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 2743587792 + ... + 2743587888.

Almost surely, 2^266128020480 is an apocalyptic number.

266128020480 is a gapful number since it is divisible by the number (20) 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 266128020480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (554635468800).

266128020480 is an abundant number, since it is smaller than the sum of its proper divisors (843142917120).

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

266128020480 is a wasteful number, since it uses less digits than its factorization.

266128020480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247 (or 229 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 39.

The spelling of 266128020480 in words is "two hundred sixty-six billion, one hundred twenty-eight million, twenty thousand, four hundred eighty".