136553326503 has 16 divisors (see below), whose sum is σ = 201879138432. Its totient is φ = 81402876000.

The previous prime is 136553326493. The next prime is 136553326529. The reversal of 136553326503 is 305623355631.

It is a happy number.

It is not a de Polignac number, because 136553326503 - 2¹² = 136553322407 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136553326583) 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, 33915853 + ... + 33919878.

It is an arithmetic number, because the mean of its divisors is an integer number (12617446152).

Almost surely, 2^136553326503 is an apocalyptic number.

136553326503 is a deficient number, since it is larger than the sum of its proper divisors (65325811929).

136553326503 is a wasteful number, since it uses less digits than its factorization.

136553326503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67835806.

The product of its (nonzero) digits is 729000, while the sum is 42.

The spelling of 136553326503 in words is "one hundred thirty-six billion, five hundred fifty-three million, three hundred twenty-six thousand, five hundred three".