266968372001 has 4 divisors (see below), whose sum is σ = 268459815600. Its totient is φ = 265476928404.

The previous prime is 266968371991. The next prime is 266968372019. The reversal of 266968372001 is 100273869662.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 266968372001 - 2¹⁸ = 266968109857 is a prime.

It is a super-2 number, since 2×266968372001² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (266968372081) 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, 745721531 + ... + 745721888.

It is an arithmetic number, because the mean of its divisors is an integer number (67114953900).

Almost surely, 2^266968372001 is an apocalyptic number.

It is an amenable number.

266968372001 is a deficient number, since it is larger than the sum of its proper divisors (1491443599).

266968372001 is a wasteful number, since it uses less digits than its factorization.

266968372001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1491443598.

The product of its (nonzero) digits is 1306368, while the sum is 50.

The spelling of 266968372001 in words is "two hundred sixty-six billion, nine hundred sixty-eight million, three hundred seventy-two thousand, one".