62666555566626 has 144 divisors (see below), whose sum is σ = 154501401370680. Its totient is φ = 18321740236800.

The previous prime is 62666555566613. The next prime is 62666555566631.

62666555566626 is nontrivially palindromic in base 10.

62666555566626 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 62520095511225 + 146460055401 = 7906965^2 + 382701^2 .

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 86867506 + ... + 87585938.

Almost surely, 2^{62666555566626} is an apocalyptic number.

62666555566626 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 62666555566626, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77250700685340).

62666555566626 is an abundant number, since it is smaller than the sum of its proper divisors (91834845804054).

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

62666555566626 is a wasteful number, since it uses less digits than its factorization.

62666555566626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 719873 (or 719859 counting only the distinct ones).

The product of its digits is 4199040000, while the sum is 72.

The spelling of 62666555566626 in words is "sixty-two trillion, six hundred sixty-six billion, five hundred fifty-five million, five hundred sixty-six thousand, six hundred twenty-six".