266378097 has 8 divisors (see below), whose sum is σ = 361190880. Its totient is φ = 174575360.

The previous prime is 266378087. The next prime is 266378113. The reversal of 266378097 is 790873662.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 266378097 - 2¹⁴ = 266361713 is a prime.

It is a super-2 number, since 2×266378097² = 141914581122682818, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (266378087) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 752304 + ... + 752657.

It is an arithmetic number, because the mean of its divisors is an integer number (45148860).

Almost surely, 2^266378097 is an apocalyptic number.

It is an amenable number.

266378097 is a deficient number, since it is larger than the sum of its proper divisors (94812783).

266378097 is a wasteful number, since it uses less digits than its factorization.

266378097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1505023.

The product of its (nonzero) digits is 762048, while the sum is 48.

The square root of 266378097 is about 16321.0936214458. The cubic root of 266378097 is about 643.4273301465.

The spelling of 266378097 in words is "two hundred sixty-six million, three hundred seventy-eight thousand, ninety-seven".