126725655577716 has 216 divisors, whose sum is σ = 348035835603456. Its totient is φ = 38861695192320.

The previous prime is 126725655577711. The next prime is 126725655577753. The reversal of 126725655577716 is 617775556527621.

126725655577716 is a `hidden beast` number, since 1 + 2 + 6 + 7 + 2 + 5 + 65 + 557 + 7 + 7 + 1 + 6 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126725655577711) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 3501561181 + ... + 3501597371.

Almost surely, 2^{126725655577716} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 126725655577716, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (174017917801728).

126725655577716 is an abundant number, since it is smaller than the sum of its proper divisors (221310180025740).

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

126725655577716 is a wasteful number, since it uses less digits than its factorization.

126725655577716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38143 (or 38125 counting only the distinct ones).

The product of its digits is 1296540000, while the sum is 72.

The spelling of 126725655577716 in words is "one hundred twenty-six trillion, seven hundred twenty-five billion, six hundred fifty-five million, five hundred seventy-seven thousand, seven hundred sixteen".