266536512 has 336 divisors, whose sum is σ = 912936960. Its totient is φ = 73497600.

The previous prime is 266536507. The next prime is 266536547. The reversal of 266536512 is 215635662.

It is a happy number.

It is a super-2 number, since 2×266536512² = 142083424458252288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 4517539 + ... + 4517597.

Almost surely, 2^266536512 is an apocalyptic number.

266536512 is a gapful number since it is divisible by the number (22) 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 266536512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (456468480).

266536512 is an abundant number, since it is smaller than the sum of its proper divisors (646400448).

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

266536512 is a wasteful number, since it uses less digits than its factorization.

266536512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142 (or 129 counting only the distinct ones).

The product of its digits is 64800, while the sum is 36.

The square root of 266536512 is about 16325.9459756548. The cubic root of 266536512 is about 643.5548535712.

The spelling of 266536512 in words is "two hundred sixty-six million, five hundred thirty-six thousand, five hundred twelve".