266652242635504 has 80 divisors (see below), whose sum is σ = 565488580700160. Its totient is φ = 120801160730880.

The previous prime is 266652242635489. The next prime is 266652242635523. The reversal of 266652242635504 is 405536242256662.

It is a super-2 number, since 2×266652242635504² (a number of 30 digits) contains 22 as substring.

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, 87714049 + ... + 90703135.

It is an arithmetic number, because the mean of its divisors is an integer number (7068607258752).

Almost surely, 2^{266652242635504} is an apocalyptic number.

It is an amenable number.

266652242635504 is an abundant number, since it is smaller than the sum of its proper divisors (298836338064656).

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

266652242635504 is a wasteful number, since it uses less digits than its factorization.

266652242635504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2990798 (or 2990792 counting only the distinct ones).

The product of its (nonzero) digits is 124416000, while the sum is 58.

The spelling of 266652242635504 in words is "two hundred sixty-six trillion, six hundred fifty-two billion, two hundred forty-two million, six hundred thirty-five thousand, five hundred four".