135603440641 has 16 divisors (see below), whose sum is σ = 145627042176. Its totient is φ = 125958704256.

The previous prime is 135603440617. The next prime is 135603440653. The reversal of 135603440641 is 146044306531.

It is not a de Polignac number, because 135603440641 - 2¹⁹ = 135602916353 is a prime.

It is a super-2 number, since 2×135603440641² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 135603440641.

It is not an unprimeable number, because it can be changed into a prime (135603440741) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 225180 + ... + 567373.

It is an arithmetic number, because the mean of its divisors is an integer number (9101690136).

Almost surely, 2^135603440641 is an apocalyptic number.

It is an amenable number.

135603440641 is a deficient number, since it is larger than the sum of its proper divisors (10023601535).

135603440641 is a wasteful number, since it uses less digits than its factorization.

135603440641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 792792.

The product of its (nonzero) digits is 103680, while the sum is 37.

The spelling of 135603440641 in words is "one hundred thirty-five billion, six hundred three million, four hundred forty thousand, six hundred forty-one".