266687228603 has 2 divisors, whose sum is σ = 266687228604. Its totient is φ = 266687228602.

The previous prime is 266687228597. The next prime is 266687228609. The reversal of 266687228603 is 306822786662.

It is a balanced prime because it is at equal distance from previous prime (266687228597) and next prime (266687228609).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-266687228603 is a prime.

It is a super-2 number, since 2×266687228603² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (266687228609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 133343614301 + 133343614302.

It is an arithmetic number, because the mean of its divisors is an integer number (133343614302).

Almost surely, 2^266687228603 is an apocalyptic number.

266687228603 is a deficient number, since it is larger than the sum of its proper divisors (1).

266687228603 is an equidigital number, since it uses as much as digits as its factorization.

266687228603 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13934592, while the sum is 56.

The spelling of 266687228603 in words is "two hundred sixty-six billion, six hundred eighty-seven million, two hundred twenty-eight thousand, six hundred three".