266563000004 has 24 divisors (see below), whose sum is σ = 534736671168. Its totient is φ = 113896141920.

The previous prime is 266563000003. The next prime is 266563000061. The reversal of 266563000004 is 400000365662.

It is a super-2 number, since 2×266563000004² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (266563000003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14371559 + ... + 14390094.

It is an arithmetic number, because the mean of its divisors is an integer number (22280694632).

Almost surely, 2^266563000004 is an apocalyptic number.

It is an amenable number.

266563000004 is an abundant number, since it is smaller than the sum of its proper divisors (268173671164).

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

266563000004 is a wasteful number, since it uses less digits than its factorization.

266563000004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28761995 (or 28761993 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 32.

Adding to 266563000004 its reverse (400000365662), we get a palindrome (666563365666).

The spelling of 266563000004 in words is "two hundred sixty-six billion, five hundred sixty-three million, four", and thus it is an aban number.