266472597138 has 16 divisors (see below), whose sum is σ = 581394757536. Its totient is φ = 80749271840.

The previous prime is 266472597119. The next prime is 266472597151. The reversal of 266472597138 is 831795274662.

It is a Curzon 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, 2018731731 + ... + 2018731862.

It is an arithmetic number, because the mean of its divisors is an integer number (36337172346).

Almost surely, 2^266472597138 is an apocalyptic number.

266472597138 is an abundant number, since it is smaller than the sum of its proper divisors (314922160398).

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

266472597138 is a wasteful number, since it uses less digits than its factorization.

266472597138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4037463609.

The product of its digits is 30481920, while the sum is 60.

The spelling of 266472597138 in words is "two hundred sixty-six billion, four hundred seventy-two million, five hundred ninety-seven thousand, one hundred thirty-eight".