135657141766543 has 4 divisors (see below), whose sum is σ = 135933429224808. Its totient is φ = 135380854308280.

The previous prime is 135657141766541. The next prime is 135657141766547. The reversal of 135657141766543 is 345667141756531.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 135657141766543 - 2¹ = 135657141766541 is a prime.

It is a super-2 number, since 2×135657141766543² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135657141766541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138143728396 + ... + 138143729377.

It is an arithmetic number, because the mean of its divisors is an integer number (33983357306202).

Almost surely, 2^{135657141766543} is an apocalyptic number.

135657141766543 is a deficient number, since it is larger than the sum of its proper divisors (276287458265).

135657141766543 is an equidigital number, since it uses as much as digits as its factorization.

135657141766543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276287458264.

The product of its digits is 190512000, while the sum is 64.

The spelling of 135657141766543 in words is "one hundred thirty-five trillion, six hundred fifty-seven billion, one hundred forty-one million, seven hundred sixty-six thousand, five hundred forty-three".