266228813830 has 16 divisors (see below), whose sum is σ = 547670702880. Its totient is φ = 91278450432.

The previous prime is 266228813821. The next prime is 266228813861. The reversal of 266228813830 is 38318822662.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1901634315 + ... + 1901634454.

It is an arithmetic number, because the mean of its divisors is an integer number (34229418930).

Almost surely, 2^266228813830 is an apocalyptic number.

266228813830 is an abundant number, since it is smaller than the sum of its proper divisors (281441889050).

266228813830 is a wasteful number, since it uses less digits than its factorization.

266228813830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3803268783.

The product of its (nonzero) digits is 1327104, while the sum is 49.

The spelling of 266228813830 in words is "two hundred sixty-six billion, two hundred twenty-eight million, eight hundred thirteen thousand, eight hundred thirty".