1155303639009 has 48 divisors (see below), whose sum is σ = 1864135145600. Its totient is φ = 710789976576.

The previous prime is 1155303638963. The next prime is 1155303639037. The reversal of 1155303639009 is 9009363035511.

1155303639009 is a `hidden beast` number, since 1 + 1 + 5 + 5 + 3 + 0 + 3 + 639 + 0 + 0 + 9 = 666.

It is not a de Polignac number, because 1155303639009 - 2³⁶ = 1086584162273 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1155303639079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 14235057 + ... + 14315985.

Almost surely, 2^{1155303639009} is an apocalyptic number.

It is an amenable number.

1155303639009 is a deficient number, since it is larger than the sum of its proper divisors (708831506591).

1155303639009 is an equidigital number, since it uses as much as digits as its factorization.

1155303639009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85476 (or 85464 counting only the distinct ones).

The product of its (nonzero) digits is 328050, while the sum is 45.

The spelling of 1155303639009 in words is "one trillion, one hundred fifty-five billion, three hundred three million, six hundred thirty-nine thousand, nine".