266916149 has 8 divisors (see below), whose sum is σ = 272875008. Its totient is φ = 260969040.

The previous prime is 266916137. The next prime is 266916163. The reversal of 266916149 is 941619662.

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 266916149 - 2⁸ = 266915893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266916119) 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, 55844 + ... + 60434.

It is an arithmetic number, because the mean of its divisors is an integer number (34109376).

Almost surely, 2^266916149 is an apocalyptic number.

It is an amenable number.

266916149 is a deficient number, since it is larger than the sum of its proper divisors (5958859).

266916149 is a wasteful number, since it uses less digits than its factorization.

266916149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5875.

The product of its digits is 139968, while the sum is 44.

The square root of 266916149 is about 16337.5686379583. The cubic root of 266916149 is about 643.8602542927.

The spelling of 266916149 in words is "two hundred sixty-six million, nine hundred sixteen thousand, one hundred forty-nine".