315551252561555 has 8 divisors (see below), whose sum is σ = 379053086847072. Its totient is φ = 252179946200448.

The previous prime is 315551252561551. The next prime is 315551252561591. The reversal of 315551252561555 is 555165252155513.

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

It is a cyclic number.

It is not a de Polignac number, because 315551252561555 - 2² = 315551252561551 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 315551252561555.

It is not an unprimeable number, because it can be changed into a prime (315551252561551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32631975782 + ... + 32631985451.

It is an arithmetic number, because the mean of its divisors is an integer number (47381635855884).

Almost surely, 2^{315551252561555} is an apocalyptic number.

315551252561555 is a deficient number, since it is larger than the sum of its proper divisors (63501834285517).

315551252561555 is an equidigital number, since it uses as much as digits as its factorization.

315551252561555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65263962205.

The product of its digits is 28125000, while the sum is 56.

The spelling of 315551252561555 in words is "three hundred fifteen trillion, five hundred fifty-one billion, two hundred fifty-two million, five hundred sixty-one thousand, five hundred fifty-five".