12461061255140 has 24 divisors (see below), whose sum is σ = 26222859613440. Its totient is φ = 4974018601568.

The previous prime is 12461061255107. The next prime is 12461061255187. The reversal of 12461061255140 is 4155216016421.

It is a junction number, because it is equal to n+sod(n) for n = 12461061255094 and 12461061255103.

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, 650358962 + ... + 650378121.

It is an arithmetic number, because the mean of its divisors is an integer number (1092619150560).

Almost surely, 2^{12461061255140} is an apocalyptic number.

12461061255140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12461061255140 is an abundant number, since it is smaller than the sum of its proper divisors (13761798358300).

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

12461061255140 is a wasteful number, since it uses less digits than its factorization.

12461061255140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1300737571 (or 1300737569 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 38.

The spelling of 12461061255140 in words is "twelve trillion, four hundred sixty-one billion, sixty-one million, two hundred fifty-five thousand, one hundred forty".