266264664 has 64 divisors (see below), whose sum is σ = 677376000. Its totient is φ = 87206016.

The previous prime is 266264623. The next prime is 266264737. The reversal of 266264664 is 466462662.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 695017 + ... + 695399.

It is an arithmetic number, because the mean of its divisors is an integer number (10584000).

Almost surely, 2^266264664 is an apocalyptic number.

266264664 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

266264664 is an abundant number, since it is smaller than the sum of its proper divisors (411111336).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

266264664 is a wasteful number, since it uses less digits than its factorization.

266264664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 824 (or 820 counting only the distinct ones).

The product of its digits is 497664, while the sum is 42.

The square root of 266264664 is about 16317.6182085499. The cubic root of 266264664 is about 643.3359859812.

The spelling of 266264664 in words is "two hundred sixty-six million, two hundred sixty-four thousand, six hundred sixty-four".