266615423623412 has 12 divisors (see below), whose sum is σ = 466627198765476. Its totient is φ = 133293366833280.

The previous prime is 266615423623403. The next prime is 266615423623429. The reversal of 266615423623412 is 214326324516662.

It can be written as a sum of positive squares in 2 ways, for example, as 25186787598736 + 241428636024676 = 5018644^2 + 15537974^2 .

It is a super-2 number, since 2×266615423623412² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3586202789 + ... + 3586277132.

It is an arithmetic number, because the mean of its divisors is an integer number (38885599897123).

Almost surely, 2^{266615423623412} is an apocalyptic number.

It is an amenable number.

266615423623412 is a deficient number, since it is larger than the sum of its proper divisors (200011775142064).

266615423623412 is a wasteful number, since it uses less digits than its factorization.

266615423623412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7172489218 (or 7172489216 counting only the distinct ones).

The product of its digits is 14929920, while the sum is 53.

The spelling of 266615423623412 in words is "two hundred sixty-six trillion, six hundred fifteen billion, four hundred twenty-three million, six hundred twenty-three thousand, four hundred twelve".