1195887313655 has 4 divisors (see below), whose sum is σ = 1435064776392. Its totient is φ = 956709850920.

The previous prime is 1195887313651. The next prime is 1195887313669. The reversal of 1195887313655 is 5563137885911.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1195887313655 - 2² = 1195887313651 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1195887313651) 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 3 ways as a sum of consecutive naturals, for example, 119588731361 + ... + 119588731370.

It is an arithmetic number, because the mean of its divisors is an integer number (358766194098).

Almost surely, 2^{1195887313655} is an apocalyptic number.

1195887313655 is a deficient number, since it is larger than the sum of its proper divisors (239177462737).

1195887313655 is an equidigital number, since it uses as much as digits as its factorization.

1195887313655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239177462736.

The product of its digits is 27216000, while the sum is 62.

The spelling of 1195887313655 in words is "one trillion, one hundred ninety-five billion, eight hundred eighty-seven million, three hundred thirteen thousand, six hundred fifty-five".