135516631593 has 16 divisors (see below), whose sum is σ = 207206326656. Its totient is φ = 77173777920.

The previous prime is 135516631561. The next prime is 135516631721. The reversal of 135516631593 is 395136615531.

It is not a de Polignac number, because 135516631593 - 2⁵ = 135516631561 is a prime.

It is not an unprimeable number, because it can be changed into a prime (135516631513) 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, 11006088 + ... + 11018393.

It is an arithmetic number, because the mean of its divisors is an integer number (12950395416).

Almost surely, 2^135516631593 is an apocalyptic number.

It is an amenable number.

135516631593 is a deficient number, since it is larger than the sum of its proper divisors (71689695063).

135516631593 is a wasteful number, since it uses less digits than its factorization.

135516631593 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22024784.

The product of its digits is 1093500, while the sum is 48.

The spelling of 135516631593 in words is "one hundred thirty-five billion, five hundred sixteen million, six hundred thirty-one thousand, five hundred ninety-three".