266042156 has 6 divisors (see below), whose sum is σ = 465573780. Its totient is φ = 133021076.

The previous prime is 266042131. The next prime is 266042177. The reversal of 266042156 is 651240662.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33255266 + ... + 33255273.

It is an arithmetic number, because the mean of its divisors is an integer number (77595630).

Almost surely, 2^266042156 is an apocalyptic number.

It is an amenable number.

266042156 is a deficient number, since it is larger than the sum of its proper divisors (199531624).

266042156 is a wasteful number, since it uses less digits than its factorization.

266042156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66510543 (or 66510541 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 266042156 is about 16310.7987541996. The cubic root of 266042156 is about 643.1567316329.

The spelling of 266042156 in words is "two hundred sixty-six million, forty-two thousand, one hundred fifty-six".