127152442641640 has 64 divisors (see below), whose sum is σ = 308868479534160. Its totient is φ = 46831515340800.

The previous prime is 127152442641611. The next prime is 127152442641779. The reversal of 127152442641640 is 46146244251721.

It can be written as a sum of positive squares in 8 ways, for example, as 113695005281796 + 13457437359844 = 10662786^2 + 3668438^2 .

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, 304684159 + ... + 305101198.

Almost surely, 2^{127152442641640} is an apocalyptic number.

127152442641640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

127152442641640 is an abundant number, since it is smaller than the sum of its proper divisors (181716036892520).

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

127152442641640 is a wasteful number, since it uses less digits than its factorization.

127152442641640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 609785782 (or 609785778 counting only the distinct ones).

The product of its (nonzero) digits is 2580480, while the sum is 49.

The spelling of 127152442641640 in words is "one hundred twenty-seven trillion, one hundred fifty-two billion, four hundred forty-two million, six hundred forty-one thousand, six hundred forty".