266640424604 has 24 divisors (see below), whose sum is σ = 474631071600. Its totient is φ = 131050540800.

The previous prime is 266640424591. The next prime is 266640424613. The reversal of 266640424604 is 406424046662.

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, 2317949 + ... + 2430260.

It is an arithmetic number, because the mean of its divisors is an integer number (19776294650).

Almost surely, 2^266640424604 is an apocalyptic number.

It is an amenable number.

266640424604 is a deficient number, since it is larger than the sum of its proper divisors (207990646996).

266640424604 is a wasteful number, since it uses less digits than its factorization.

266640424604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4748453 (or 4748451 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 44.

The spelling of 266640424604 in words is "two hundred sixty-six billion, six hundred forty million, four hundred twenty-four thousand, six hundred four".