1155361061185 has 16 divisors (see below), whose sum is σ = 1393870488192. Its totient is φ = 919343440000.

The previous prime is 1155361061149. The next prime is 1155361061203. The reversal of 1155361061185 is 5811601635511.

It is not a de Polignac number, because 1155361061185 - 2²³ = 1155352672577 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69316 + ... + 1521685.

It is an arithmetic number, because the mean of its divisors is an integer number (87116905512).

Almost surely, 2^{1155361061185} is an apocalyptic number.

It is an amenable number.

1155361061185 is a deficient number, since it is larger than the sum of its proper divisors (238509427007).

1155361061185 is a wasteful number, since it uses less digits than its factorization.

1155361061185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1591784.

The product of its (nonzero) digits is 108000, while the sum is 43.

Adding to 1155361061185 its reverse (5811601635511), we get a palindrome (6966962696696).

The spelling of 1155361061185 in words is "one trillion, one hundred fifty-five billion, three hundred sixty-one million, sixty-one thousand, one hundred eighty-five".