266028517080 has 256 divisors, whose sum is σ = 899277206400. Its totient is φ = 70817089536.

The previous prime is 266028517063. The next prime is 266028517093. The reversal of 266028517080 is 80715820662.

266028517080 is a `hidden beast` number, since 26 + 602 + 8 + 5 + 17 + 0 + 8 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 57122112 + ... + 57126768.

Almost surely, 2^266028517080 is an apocalyptic number.

266028517080 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 266028517080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (449638603200).

266028517080 is an abundant number, since it is smaller than the sum of its proper divisors (633248689320).

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

266028517080 is an equidigital number, since it uses as much as digits as its factorization.

266028517080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5342 (or 5320 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The spelling of 266028517080 in words is "two hundred sixty-six billion, twenty-eight million, five hundred seventeen thousand, eighty".