266645626546662 has 72 divisors (see below), whose sum is σ = 672382530427608. Its totient is φ = 76048663532160.

The previous prime is 266645626546657. The next prime is 266645626546681.

266645626546662 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 3600751968 + ... + 3600826019.

It is an arithmetic number, because the mean of its divisors is an integer number (9338646255939).

Almost surely, 2^{266645626546662} is an apocalyptic number.

266645626546662 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

266645626546662 is an abundant number, since it is smaller than the sum of its proper divisors (405736903880946).

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

266645626546662 is a wasteful number, since it uses less digits than its factorization.

266645626546662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7201578034 (or 7201578020 counting only the distinct ones).

The product of its digits is 5374771200, while the sum is 72.

The spelling of 266645626546662 in words is "two hundred sixty-six trillion, six hundred forty-five billion, six hundred twenty-six million, five hundred forty-six thousand, six hundred sixty-two".