266451231155051 has 4 divisors (see below), whose sum is σ = 266567230822632. Its totient is φ = 266335231487472.

The previous prime is 266451231154981. The next prime is 266451231155099. The reversal of 266451231155051 is 150551132154662.

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

It is a cyclic number.

It is not a de Polignac number, because 266451231155051 - 2¹⁰ = 266451231154027 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 266451231154987 and 266451231155005.

It is not an unprimeable number, because it can be changed into a prime (266451231355051) 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, 57999830345 + ... + 57999834938.

It is an arithmetic number, because the mean of its divisors is an integer number (66641807705658).

Almost surely, 2^{266451231155051} is an apocalyptic number.

266451231155051 is a deficient number, since it is larger than the sum of its proper divisors (115999667581).

266451231155051 is a wasteful number, since it uses less digits than its factorization.

266451231155051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115999667580.

The product of its (nonzero) digits is 1080000, while the sum is 47.

The spelling of 266451231155051 in words is "two hundred sixty-six trillion, four hundred fifty-one billion, two hundred thirty-one million, one hundred fifty-five thousand, fifty-one".