136171378705 has 16 divisors (see below), whose sum is σ = 164976159744. Its totient is φ = 107895075840.

The previous prime is 136171378691. The next prime is 136171378727. The reversal of 136171378705 is 507873171631.

It is a happy number.

It is not a de Polignac number, because 136171378705 - 2²⁷ = 136037160977 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 91761 + ... + 529870.

It is an arithmetic number, because the mean of its divisors is an integer number (10311009984).

Almost surely, 2^136171378705 is an apocalyptic number.

It is an amenable number.

136171378705 is a deficient number, since it is larger than the sum of its proper divisors (28804781039).

136171378705 is a wasteful number, since it uses less digits than its factorization.

136171378705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 622056.

The product of its (nonzero) digits is 740880, while the sum is 49.

The spelling of 136171378705 in words is "one hundred thirty-six billion, one hundred seventy-one million, three hundred seventy-eight thousand, seven hundred five".