1205043196550 has 24 divisors (see below), whose sum is σ = 2252643582000. Its totient is φ = 479595077280.

The previous prime is 1205043196547. The next prime is 1205043196601. The reversal of 1205043196550 is 556913405021.

It is a junction number, because it is equal to n+sod(n) for n = 1205043196498 and 1205043196507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 60544985 + ... + 60564884.

It is an arithmetic number, because the mean of its divisors is an integer number (93860149250).

Almost surely, 2^{1205043196550} is an apocalyptic number.

1205043196550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1205043196550 is a deficient number, since it is larger than the sum of its proper divisors (1047600385450).

1205043196550 is a wasteful number, since it uses less digits than its factorization.

1205043196550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121110080 (or 121110075 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 41.

The spelling of 1205043196550 in words is "one trillion, two hundred five billion, forty-three million, one hundred ninety-six thousand, five hundred fifty".