266512630 has 16 divisors (see below), whose sum is σ = 484125840. Its totient is φ = 105626592.

The previous prime is 266512579. The next prime is 266512633. The reversal of 266512630 is 36215662.

It is a junction number, because it is equal to n+sod(n) for n = 266512592 and 266512601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266512633) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 121164 + ... + 123343.

It is an arithmetic number, because the mean of its divisors is an integer number (30257865).

Almost surely, 2^266512630 is an apocalyptic number.

266512630 is a deficient number, since it is larger than the sum of its proper divisors (217613210).

266512630 is a wasteful number, since it uses less digits than its factorization.

266512630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244623.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 266512630 is about 16325.2145468291. The cubic root of 266512630 is about 643.5356318944.

The spelling of 266512630 in words is "two hundred sixty-six million, five hundred twelve thousand, six hundred thirty".