13330640305501 has 4 divisors (see below), whose sum is σ = 13330653443100. Its totient is φ = 13330627167904.

The previous prime is 13330640305471. The next prime is 13330640305537. The reversal of 13330640305501 is 10550304603331.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11700743803225 + 1629896502276 = 3420635^2 + 1276674^2 .

It is a cyclic number.

It is not a de Polignac number, because 13330640305501 - 2⁷ = 13330640305373 is a prime.

It is a super-2 number, since 2×13330640305501² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13330640305601) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 4906546 + ... + 7122883.

It is an arithmetic number, because the mean of its divisors is an integer number (3332663360775).

Almost surely, 2^{13330640305501} is an apocalyptic number.

It is an amenable number.

13330640305501 is a deficient number, since it is larger than the sum of its proper divisors (13137599).

13330640305501 is a wasteful number, since it uses less digits than its factorization.

13330640305501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13137598.

The product of its (nonzero) digits is 48600, while the sum is 34.

Adding to 13330640305501 its reverse (10550304603331), we get a palindrome (23880944908832).

The spelling of 13330640305501 in words is "thirteen trillion, three hundred thirty billion, six hundred forty million, three hundred five thousand, five hundred one".