266061416 has 8 divisors (see below), whose sum is σ = 498865170. Its totient is φ = 133030704.

The previous prime is 266061379. The next prime is 266061449. The reversal of 266061416 is 614160662.

It can be written as a sum of positive squares in only one way, i.e., 203176516 + 62884900 = 14254^2 + 7930^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16628831 + ... + 16628846.

Almost surely, 2^266061416 is an apocalyptic number.

It is an amenable number.

266061416 is a deficient number, since it is larger than the sum of its proper divisors (232803754).

266061416 is a wasteful number, since it uses less digits than its factorization.

266061416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33257683 (or 33257679 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 266061416 is about 16311.3891499161. The cubic root of 266061416 is about 643.1722516040.

The spelling of 266061416 in words is "two hundred sixty-six million, sixty-one thousand, four hundred sixteen".