1155631356201 has 16 divisors (see below), whose sum is σ = 1790808883200. Its totient is φ = 649168218768.

The previous prime is 1155631356163. The next prime is 1155631356251. The reversal of 1155631356201 is 1026531365511.

It is not a de Polignac number, because 1155631356201 - 2¹⁵ = 1155631323433 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1155631356201.

It is not an unprimeable number, because it can be changed into a prime (1155631356251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 466355241 + ... + 466357718.

It is an arithmetic number, because the mean of its divisors is an integer number (111925555200).

Almost surely, 2^{1155631356201} is an apocalyptic number.

It is an amenable number.

1155631356201 is a deficient number, since it is larger than the sum of its proper divisors (635177526999).

1155631356201 is an equidigital number, since it uses as much as digits as its factorization.

1155631356201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 932713028.

The product of its (nonzero) digits is 81000, while the sum is 39.

The spelling of 1155631356201 in words is "one trillion, one hundred fifty-five billion, six hundred thirty-one million, three hundred fifty-six thousand, two hundred one".