127144432395556 has 9 divisors (see below), whose sum is σ = 222502796157649. Its totient is φ = 63572204921944.

The previous prime is 127144432395523. The next prime is 127144432395581. The reversal of 127144432395556 is 655593234441721.

The square root of 127144432395556 is 11275834.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 15973051356900 + 111171381038656 = 3996630^2 + 10543784^2 .

It is a super-2 number, since 2×127144432395556² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 127144432395494 and 127144432395503.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 19732710 + ... + 25370626.

Almost surely, 2^{127144432395556} is an apocalyptic number.

127144432395556 is the 11275834-th square number.

It is an amenable number.

127144432395556 is a deficient number, since it is larger than the sum of its proper divisors (95358363762093).

127144432395556 is an frugal number, since it uses more digits than its factorization.

127144432395556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11275838 (or 5637919 counting only the distinct ones).

The product of its digits is 108864000, while the sum is 61.

The spelling of 127144432395556 in words is "one hundred twenty-seven trillion, one hundred forty-four billion, four hundred thirty-two million, three hundred ninety-five thousand, five hundred fifty-six".