135516631641 has 8 divisors (see below), whose sum is σ = 180690859104. Its totient is φ = 90343412640.

The previous prime is 135516631561. The next prime is 135516631721. The reversal of 135516631641 is 146136615531.

It is an interprime number because it is at equal distance from previous prime (135516631561) and next prime (135516631721).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 135516631641 - 2⁷ = 135516631513 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 135516631593 and 135516631602.

It is not an unprimeable number, because it can be changed into a prime (135516631241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 155661 + ... + 543381.

It is an arithmetic number, because the mean of its divisors is an integer number (22586357388).

Almost surely, 2^135516631641 is an apocalyptic number.

It is an amenable number.

135516631641 is a deficient number, since it is larger than the sum of its proper divisors (45174227463).

135516631641 is a wasteful number, since it uses less digits than its factorization.

135516631641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 504231.

The product of its digits is 194400, while the sum is 42.

The spelling of 135516631641 in words is "one hundred thirty-five billion, five hundred sixteen million, six hundred thirty-one thousand, six hundred forty-one".