15315351310555 has 16 divisors (see below), whose sum is σ = 18588357001440. Its totient is φ = 12112375004928.

The previous prime is 15315351310537. The next prime is 15315351310561. The reversal of 15315351310555 is 55501315351351.

It is a cyclic number.

It is not a de Polignac number, because 15315351310555 - 2⁹ = 15315351310043 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 770277 + ... + 5587846.

It is an arithmetic number, because the mean of its divisors is an integer number (1161772312590).

Almost surely, 2^{15315351310555} is an apocalyptic number.

15315351310555 is a deficient number, since it is larger than the sum of its proper divisors (3273005690885).

15315351310555 is an equidigital number, since it uses as much as digits as its factorization.

15315351310555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6363630.

The product of its (nonzero) digits is 421875, while the sum is 43.

The spelling of 15315351310555 in words is "fifteen trillion, three hundred fifteen billion, three hundred fifty-one million, three hundred ten thousand, five hundred fifty-five".