266412643453 has 16 divisors (see below), whose sum is σ = 310320907776. Its totient is φ = 226275643440.

The previous prime is 266412643429. The next prime is 266412643487. The reversal of 266412643453 is 354346214662.

It is a happy number.

It is not a de Polignac number, because 266412643453 - 2²⁹ = 265875772541 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266412643403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12233475 + ... + 12255232.

It is an arithmetic number, because the mean of its divisors is an integer number (19395056736).

Almost surely, 2^266412643453 is an apocalyptic number.

266412643453 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

266412643453 is a deficient number, since it is larger than the sum of its proper divisors (43908264323).

266412643453 is a wasteful number, since it uses less digits than its factorization.

266412643453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24488784.

The product of its digits is 2488320, while the sum is 46.

The spelling of 266412643453 in words is "two hundred sixty-six billion, four hundred twelve million, six hundred forty-three thousand, four hundred fifty-three".