135216454712 has 64 divisors (see below), whose sum is σ = 267628406400. Its totient is φ = 63974845440.

The previous prime is 135216454699. The next prime is 135216454729. The reversal of 135216454712 is 217454612531.

It is a self number, because there is not a number n which added to its sum of digits gives 135216454712.

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, 1564913 + ... + 1649055.

It is an arithmetic number, because the mean of its divisors is an integer number (4181693850).

Almost surely, 2^135216454712 is an apocalyptic number.

It is an amenable number.

135216454712 is a deficient number, since it is larger than the sum of its proper divisors (132411951688).

135216454712 is a wasteful number, since it uses less digits than its factorization.

135216454712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84336 (or 84332 counting only the distinct ones).

The product of its digits is 201600, while the sum is 41.

The spelling of 135216454712 in words is "one hundred thirty-five billion, two hundred sixteen million, four hundred fifty-four thousand, seven hundred twelve".