127671407401220 has 24 divisors (see below), whose sum is σ = 277355126424600. Its totient is φ = 49307578030592.

The previous prime is 127671407401211. The next prime is 127671407401231. The reversal of 127671407401220 is 22104704176721.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 22288822978816 + 105382584422404 = 4721104^2 + 10265602^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110061557525 + ... + 110061558684.

It is an arithmetic number, because the mean of its divisors is an integer number (11556463601025).

Almost surely, 2^{127671407401220} is an apocalyptic number.

127671407401220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

127671407401220 is an abundant number, since it is smaller than the sum of its proper divisors (149683719023380).

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

127671407401220 is a wasteful number, since it uses less digits than its factorization.

127671407401220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220123116247 (or 220123116245 counting only the distinct ones).

The product of its (nonzero) digits is 263424, while the sum is 44.

The spelling of 127671407401220 in words is "one hundred twenty-seven trillion, six hundred seventy-one billion, four hundred seven million, four hundred one thousand, two hundred twenty".