135516629427922 has 16 divisors (see below), whose sum is σ = 203467275227160. Its totient is φ = 67694205710592.

The previous prime is 135516629427871. The next prime is 135516629428027. The reversal of 135516629427922 is 229724926615531.

It is a happy number.

It is a Cunningham number, because it is equal to 11641161²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 63368270655561 + 72148358772361 = 7960419^2 + 8494019^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 239072428 + ... + 239638600.

Almost surely, 2^{135516629427922} is an apocalyptic number.

135516629427922 is a deficient number, since it is larger than the sum of its proper divisors (67950645799238).

135516629427922 is a wasteful number, since it uses less digits than its factorization.

135516629427922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 679197.

The product of its digits is 97977600, while the sum is 64.

The spelling of 135516629427922 in words is "one hundred thirty-five trillion, five hundred sixteen billion, six hundred twenty-nine million, four hundred twenty-seven thousand, nine hundred twenty-two".