1255961115140 has 48 divisors (see below), whose sum is σ = 2644495392000. Its totient is φ = 501056330112.

The previous prime is 1255961115137. The next prime is 1255961115179. The reversal of 1255961115140 is 415111695521.

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, 25323086 + ... + 25372634.

It is an arithmetic number, because the mean of its divisors is an integer number (55093654000).

Almost surely, 2^{1255961115140} is an apocalyptic number.

1255961115140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1255961115140 is an abundant number, since it is smaller than the sum of its proper divisors (1388534276860).

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

1255961115140 is a wasteful number, since it uses less digits than its factorization.

1255961115140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52884 (or 52882 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 41.

The spelling of 1255961115140 in words is "one trillion, two hundred fifty-five billion, nine hundred sixty-one million, one hundred fifteen thousand, one hundred forty".