1205216044153 has 4 divisors (see below), whose sum is σ = 1314781139088. Its totient is φ = 1095650949220.

The previous prime is 1205216044139. The next prime is 1205216044181. The reversal of 1205216044153 is 3514406125021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1205216044153 - 2³³ = 1196626109561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1205216044103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54782547451 + ... + 54782547472.

It is an arithmetic number, because the mean of its divisors is an integer number (328695284772).

Almost surely, 2^{1205216044153} is an apocalyptic number.

It is an amenable number.

1205216044153 is a deficient number, since it is larger than the sum of its proper divisors (109565094935).

1205216044153 is a wasteful number, since it uses less digits than its factorization.

1205216044153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109565094934.

The product of its (nonzero) digits is 28800, while the sum is 34.

The spelling of 1205216044153 in words is "one trillion, two hundred five billion, two hundred sixteen million, forty-four thousand, one hundred fifty-three".