135641420544155 has 4 divisors (see below), whose sum is σ = 162769704652992. Its totient is φ = 108513136435320.

The previous prime is 135641420544121. The next prime is 135641420544173. The reversal of 135641420544155 is 551445024146531.

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

It is not a de Polignac number, because 135641420544155 - 2³⁴ = 135624240674971 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13564142054411 + ... + 13564142054420.

It is an arithmetic number, because the mean of its divisors is an integer number (40692426163248).

Almost surely, 2^{135641420544155} is an apocalyptic number.

135641420544155 is a deficient number, since it is larger than the sum of its proper divisors (27128284108837).

135641420544155 is an equidigital number, since it uses as much as digits as its factorization.

135641420544155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27128284108836.

The product of its (nonzero) digits is 5760000, while the sum is 50.

The spelling of 135641420544155 in words is "one hundred thirty-five trillion, six hundred forty-one billion, four hundred twenty million, five hundred forty-four thousand, one hundred fifty-five".