127216453536 has 72 divisors (see below), whose sum is σ = 371549436804. Its totient is φ = 41259386880.

The previous prime is 127216453517. The next prime is 127216453673. The reversal of 127216453536 is 635354612721.

127216453536 is a `hidden beast` number, since 1 + 2 + 7 + 2 + 1 + 64 + 53 + 536 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 127132181136 + 84272400 = 356556^2 + 9180^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is a junction number, because it is equal to n+sod(n) for n = 127216453491 and 127216453500.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5958585 + ... + 5979896.

Almost surely, 2^127216453536 is an apocalyptic number.

127216453536 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

127216453536 is an abundant number, since it is smaller than the sum of its proper divisors (244332983268).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

127216453536 is a wasteful number, since it uses less digits than its factorization.

127216453536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11938534 (or 11938523 counting only the distinct ones).

The product of its digits is 907200, while the sum is 45.

The spelling of 127216453536 in words is "one hundred twenty-seven billion, two hundred sixteen million, four hundred fifty-three thousand, five hundred thirty-six".