266422667 has 8 divisors (see below), whose sum is σ = 306706656. Its totient is φ = 226694592.

The previous prime is 266422661. The next prime is 266422687. The reversal of 266422667 is 766224662.

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 266422667 - 2¹⁸ = 266160523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (266422661) 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, 137948 + ... + 139865.

It is an arithmetic number, because the mean of its divisors is an integer number (38338332).

Almost surely, 2^266422667 is an apocalyptic number.

266422667 is a deficient number, since it is larger than the sum of its proper divisors (40283989).

266422667 is a wasteful number, since it uses less digits than its factorization.

266422667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277957.

The product of its digits is 290304, while the sum is 41.

The square root of 266422667 is about 16322.4589752892. The cubic root of 266422667 is about 643.4632139237.

The spelling of 266422667 in words is "two hundred sixty-six million, four hundred twenty-two thousand, six hundred sixty-seven".