135677377431555 has 32 divisors (see below), whose sum is σ = 217151763922944. Its totient is φ = 72338616295296.

The previous prime is 135677377431527. The next prime is 135677377431613. The reversal of 135677377431555 is 555134773776531.

135677377431555 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 135677377431555 - 2¹⁰ = 135677377430531 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 135677377431555.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2252886174 + ... + 2252946396.

It is an arithmetic number, because the mean of its divisors is an integer number (6785992622592).

Almost surely, 2^{135677377431555} is an apocalyptic number.

135677377431555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

135677377431555 is a deficient number, since it is larger than the sum of its proper divisors (81474386491389).

135677377431555 is a wasteful number, since it uses less digits than its factorization.

135677377431555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104755.

The product of its digits is 972405000, while the sum is 69.

The spelling of 135677377431555 in words is "one hundred thirty-five trillion, six hundred seventy-seven billion, three hundred seventy-seven million, four hundred thirty-one thousand, five hundred fifty-five".