634140706055 has 16 divisors (see below), whose sum is σ = 770985523200. Its totient is φ = 500641184160.

The previous prime is 634140705983. The next prime is 634140706063. The reversal of 634140706055 is 550607041436.

634140706055 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 634140706055 - 2²² = 634136511751 is a prime.

It is a congruent 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, 395186 + ... + 1193504.

It is an arithmetic number, because the mean of its divisors is an integer number (48186595200).

Almost surely, 2^634140706055 is an apocalyptic number.

634140706055 is a deficient number, since it is larger than the sum of its proper divisors (136844817145).

634140706055 is a wasteful number, since it uses less digits than its factorization.

634140706055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 800414.

The product of its (nonzero) digits is 302400, while the sum is 41.

The spelling of 634140706055 in words is "six hundred thirty-four billion, one hundred forty million, seven hundred six thousand, fifty-five".