266555042 has 8 divisors (see below), whose sum is σ = 430588956. Its totient is φ = 123025392.

The previous prime is 266555021. The next prime is 266555057. The reversal of 266555042 is 240555662.

It can be written as a sum of positive squares in 2 ways, for example, as 212547241 + 54007801 = 14579^2 + 7349^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 266554993 and 266555011.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5126033 + ... + 5126084.

Almost surely, 2^266555042 is an apocalyptic number.

266555042 is a deficient number, since it is larger than the sum of its proper divisors (164033914).

266555042 is a wasteful number, since it uses less digits than its factorization.

266555042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10252132.

The product of its (nonzero) digits is 72000, while the sum is 35.

The square root of 266555042 is about 16326.5134673634. The cubic root of 266555042 is about 643.5697668439.

The spelling of 266555042 in words is "two hundred sixty-six million, five hundred fifty-five thousand, forty-two".