1155326543201 has 8 divisors (see below), whose sum is σ = 1155788715840. Its totient is φ = 1154864459952.

The previous prime is 1155326543191. The next prime is 1155326543207. The reversal of 1155326543201 is 1023456235511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1155326543201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1155326543207) 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 7 ways as a sum of consecutive naturals, for example, 37273556 + ... + 37304538.

It is an arithmetic number, because the mean of its divisors is an integer number (144473589480).

Almost surely, 2^{1155326543201} is an apocalyptic number.

It is an amenable number.

1155326543201 is a deficient number, since it is larger than the sum of its proper divisors (462172639).

1155326543201 is an equidigital number, since it uses as much as digits as its factorization.

1155326543201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44695.

The product of its (nonzero) digits is 108000, while the sum is 38.

The spelling of 1155326543201 in words is "one trillion, one hundred fifty-five billion, three hundred twenty-six million, five hundred forty-three thousand, two hundred one".