1155216645363 has 12 divisors (see below), whose sum is σ = 1693044781064. Its totient is φ = 700131300000.

The previous prime is 1155216645347. The next prime is 1155216645397. The reversal of 1155216645363 is 3635466125511.

It is not a de Polignac number, because 1155216645363 - 2⁴ = 1155216645347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1155216645313) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1591207138 + ... + 1591207863.

Almost surely, 2^{1155216645363} is an apocalyptic number.

1155216645363 is a deficient number, since it is larger than the sum of its proper divisors (537828135701).

1155216645363 is a wasteful number, since it uses less digits than its factorization.

1155216645363 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3182415026 (or 3182415015 counting only the distinct ones).

The product of its digits is 1944000, while the sum is 48.

The spelling of 1155216645363 in words is "one trillion, one hundred fifty-five billion, two hundred sixteen million, six hundred forty-five thousand, three hundred sixty-three".