266435015320 has 64 divisors (see below), whose sum is σ = 651897499680. Its totient is φ = 97593993216.

The previous prime is 266435015291. The next prime is 266435015377. The reversal of 266435015320 is 23510534662.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a self number, because there is not a number n which added to its sum of digits gives 266435015320.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5269654 + ... + 5319973.

Almost surely, 2^266435015320 is an apocalyptic number.

266435015320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

266435015320 is an abundant number, since it is smaller than the sum of its proper divisors (385462484360).

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

266435015320 is a wasteful number, since it uses less digits than its factorization.

266435015320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10589692 (or 10589688 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 37.

Adding to 266435015320 its reverse (23510534662), we get a palindrome (289945549982).

The spelling of 266435015320 in words is "two hundred sixty-six billion, four hundred thirty-five million, fifteen thousand, three hundred twenty".