266005200634 has 16 divisors (see below), whose sum is σ = 411104390760. Its totient is φ = 129030140160.

The previous prime is 266005200619. The next prime is 266005200641. The reversal of 266005200634 is 436002500662.

It can be written as a sum of positive squares in 4 ways, for example, as 212599377225 + 53405823409 = 461085^2 + 231097^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 266005200634.

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, 14925139 + ... + 14942950.

Almost surely, 2^266005200634 is an apocalyptic number.

266005200634 is a deficient number, since it is larger than the sum of its proper divisors (145099190126).

266005200634 is a wasteful number, since it uses less digits than its factorization.

266005200634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29868225.

The product of its (nonzero) digits is 51840, while the sum is 34.

The spelling of 266005200634 in words is "two hundred sixty-six billion, five million, two hundred thousand, six hundred thirty-four".