135161663641 has 8 divisors (see below), whose sum is σ = 135777942144. Its totient is φ = 134545694880.

The previous prime is 135161663603. The next prime is 135161663653. The reversal of 135161663641 is 146366161531.

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

It is a cyclic number.

It is not a de Polignac number, because 135161663641 - 2²⁷ = 135027445913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135161663341) 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, 820956 + ... + 971746.

It is an arithmetic number, because the mean of its divisors is an integer number (16972242768).

Almost surely, 2^135161663641 is an apocalyptic number.

It is an amenable number.

135161663641 is a deficient number, since it is larger than the sum of its proper divisors (616278503).

135161663641 is a wasteful number, since it uses less digits than its factorization.

135161663641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154871.

The product of its digits is 233280, while the sum is 43.

The spelling of 135161663641 in words is "one hundred thirty-five billion, one hundred sixty-one million, six hundred sixty-three thousand, six hundred forty-one".