266246245625340 has 48 divisors (see below), whose sum is σ = 748832489975808. Its totient is φ = 70680617669184.

The previous prime is 266246245625291. The next prime is 266246245625407. The reversal of 266246245625340 is 43526542642662.

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, 9949397892 + ... + 9949424651.

It is an arithmetic number, because the mean of its divisors is an integer number (15600676874496).

Almost surely, 2^{266246245625340} is an apocalyptic number.

266246245625340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

266246245625340 is an abundant number, since it is smaller than the sum of its proper divisors (482586244350468).

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

266246245625340 is a wasteful number, since it uses less digits than its factorization.

266246245625340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19898822778 (or 19898822776 counting only the distinct ones).

The product of its (nonzero) digits is 99532800, while the sum is 57.

The spelling of 266246245625340 in words is "two hundred sixty-six trillion, two hundred forty-six billion, two hundred forty-five million, six hundred twenty-five thousand, three hundred forty".