127616681666276 has 72 divisors (see below), whose sum is σ = 260315444866680. Its totient is φ = 54511762539520.

The previous prime is 127616681666273. The next prime is 127616681666297. The reversal of 127616681666276 is 672666186616721.

It can be written as a sum of positive squares in 4 ways, for example, as 2028260188900 + 125588421477376 = 1424170^2 + 11206624^2 .

It is not an unprimeable number, because it can be changed into a prime (127616681666273) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6503111 + ... + 17248878.

It is an arithmetic number, because the mean of its divisors is an integer number (3615492289815).

Almost surely, 2^{127616681666276} is an apocalyptic number.

It is an amenable number.

127616681666276 is an abundant number, since it is smaller than the sum of its proper divisors (132698763200404).

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

127616681666276 is a wasteful number, since it uses less digits than its factorization.

127616681666276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23752685 (or 23752672 counting only the distinct ones).

The product of its digits is 438939648, while the sum is 71.

The spelling of 127616681666276 in words is "one hundred twenty-seven trillion, six hundred sixteen billion, six hundred eighty-one million, six hundred sixty-six thousand, two hundred seventy-six".