266006515045031 has 4 divisors (see below), whose sum is σ = 266014527564000. Its totient is φ = 265998502526064.

The previous prime is 266006515044989. The next prime is 266006515045049. The reversal of 266006515045031 is 130540515600662.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-266006515045031 is a prime.

It is a super-2 number, since 2×266006515045031² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266006515045091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4006209686 + ... + 4006276083.

It is an arithmetic number, because the mean of its divisors is an integer number (66503631891000).

Almost surely, 2^{266006515045031} is an apocalyptic number.

266006515045031 is a deficient number, since it is larger than the sum of its proper divisors (8012518969).

266006515045031 is an equidigital number, since it uses as much as digits as its factorization.

266006515045031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8012518968.

The product of its (nonzero) digits is 648000, while the sum is 44.

The spelling of 266006515045031 in words is "two hundred sixty-six trillion, six billion, five hundred fifteen million, forty-five thousand, thirty-one".