1311625641155 has 8 divisors (see below), whose sum is σ = 1573957477584. Its totient is φ = 1049296040800.

The previous prime is 1311625641133. The next prime is 1311625641191. The reversal of 1311625641155 is 5511465261131.

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

It is not a de Polignac number, because 1311625641155 - 2¹⁶ = 1311625575619 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1283600 + ... + 2066610.

It is an arithmetic number, because the mean of its divisors is an integer number (196744684698).

Almost surely, 2^{1311625641155} is an apocalyptic number.

1311625641155 is a deficient number, since it is larger than the sum of its proper divisors (262331836429).

1311625641155 is an equidigital number, since it uses as much as digits as its factorization.

1311625641155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1118037.

The product of its digits is 108000, while the sum is 41.

The spelling of 1311625641155 in words is "one trillion, three hundred eleven billion, six hundred twenty-five million, six hundred forty-one thousand, one hundred fifty-five".