80135811637641 has 6 divisors (see below), whose sum is σ = 115751727921050. Its totient is φ = 53423874425088.

The previous prime is 80135811637633. The next prime is 80135811637657. The reversal of 80135811637641 is 14673611853108.

80135811637641 is a `hidden beast` number, since 8 + 0 + 1 + 3 + 581 + 16 + 3 + 7 + 6 + 41 = 666.

It can be written as a sum of positive squares in only one way, i.e., 79210712001600 + 925099636041 = 8900040^2 + 961821^2 .

It is not a de Polignac number, because 80135811637641 - 2³ = 80135811637633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80135811637621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4451989535416 + ... + 4451989535433.

Almost surely, 2^{80135811637641} is an apocalyptic number.

It is an amenable number.

80135811637641 is a deficient number, since it is larger than the sum of its proper divisors (35615916283409).

80135811637641 is a wasteful number, since it uses less digits than its factorization.

80135811637641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8903979070855 (or 8903979070852 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 54.

The spelling of 80135811637641 in words is "eighty trillion, one hundred thirty-five billion, eight hundred eleven million, six hundred thirty-seven thousand, six hundred forty-one".