266628044088 has 640 divisors, whose sum is σ = 967938048000. Its totient is φ = 66789930240.

The previous prime is 266628044077. The next prime is 266628044099. The reversal of 266628044088 is 880440826662.

It is an interprime number because it is at equal distance from previous prime (266628044077) and next prime (266628044099).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 61447023 + ... + 61451361.

It is an arithmetic number, because the mean of its divisors is an integer number (1512403200).

Almost surely, 2^266628044088 is an apocalyptic number.

266628044088 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 266628044088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (483969024000).

266628044088 is an abundant number, since it is smaller than the sum of its proper divisors (701310003912).

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

266628044088 is a wasteful number, since it uses less digits than its factorization.

266628044088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4437 (or 4424 counting only the distinct ones).

The product of its (nonzero) digits is 7077888, while the sum is 54.

The spelling of 266628044088 in words is "two hundred sixty-six billion, six hundred twenty-eight million, forty-four thousand, eighty-eight".