275520127405656 has 64 divisors (see below), whose sum is σ = 787325299649280. Its totient is φ = 78707542838400.

The previous prime is 275520127405637. The next prime is 275520127405661. The reversal of 275520127405656 is 656504721025572.

275520127405656 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×275520127405656² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 275520127405596 and 275520127405605.

It is a congruent number.

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, 129079566 + ... + 131196701.

It is an arithmetic number, because the mean of its divisors is an integer number (12301957807020).

Almost surely, 2^{275520127405656} is an apocalyptic number.

It is an amenable number.

275520127405656 is an abundant number, since it is smaller than the sum of its proper divisors (511805172243624).

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

275520127405656 is a wasteful number, since it uses less digits than its factorization.

275520127405656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260282584 (or 260282580 counting only the distinct ones).

The product of its (nonzero) digits is 35280000, while the sum is 57.

The spelling of 275520127405656 in words is "two hundred seventy-five trillion, five hundred twenty billion, one hundred twenty-seven million, four hundred five thousand, six hundred fifty-six".