13066735662436 has 9 divisors (see below), whose sum is σ = 22866800061049. Its totient is φ = 6533364216424.

The previous prime is 13066735662373. The next prime is 13066735662437. The reversal of 13066735662436 is 63426653766031.

It is a happy number.

The square root of 13066735662436 is 3614794.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 10289660062500 + 2777075599936 = 3207750^2 + 1666456^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13066735662437) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 6325890 + ... + 8133286.

Almost surely, 2^{13066735662436} is an apocalyptic number.

13066735662436 is the 3614794-th square number.

It is an amenable number.

13066735662436 is a deficient number, since it is larger than the sum of its proper divisors (9800064398613).

13066735662436 is an frugal number, since it uses more digits than its factorization.

13066735662436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3614798 (or 1807399 counting only the distinct ones).

The product of its (nonzero) digits is 58786560, while the sum is 58.

The spelling of 13066735662436 in words is "thirteen trillion, sixty-six billion, seven hundred thirty-five million, six hundred sixty-two thousand, four hundred thirty-six".