266420663036 has 24 divisors (see below), whose sum is σ = 538540165296. Its totient is φ = 113976753920.

The previous prime is 266420663027. The next prime is 266420663077. The reversal of 266420663036 is 630366024662.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 178087931 + ... + 178089426.

It is an arithmetic number, because the mean of its divisors is an integer number (22439173554).

Almost surely, 2^266420663036 is an apocalyptic number.

It is an amenable number.

266420663036 is an abundant number, since it is smaller than the sum of its proper divisors (272119502260).

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

266420663036 is a wasteful number, since it uses less digits than its factorization.

266420663036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356177389 (or 356177387 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 44.

Adding to 266420663036 its reverse (630366024662), we get a palindrome (896786687698).

The spelling of 266420663036 in words is "two hundred sixty-six billion, four hundred twenty million, six hundred sixty-three thousand, thirty-six".