15315355063265 has 16 divisors (see below), whose sum is σ = 18420106464768. Its totient is φ = 12224502835776.

The previous prime is 15315355063247. The next prime is 15315355063277. The reversal of 15315355063265 is 56236055351351.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 15315355063265 - 2¹⁶ = 15315354997729 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21402044 + ... + 22106066.

It is an arithmetic number, because the mean of its divisors is an integer number (1151256654048).

Almost surely, 2^{15315355063265} is an apocalyptic number.

It is an amenable number.

15315355063265 is a deficient number, since it is larger than the sum of its proper divisors (3104751401503).

15315355063265 is an equidigital number, since it uses as much as digits as its factorization.

15315355063265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 713888.

The product of its (nonzero) digits is 6075000, while the sum is 50.

The spelling of 15315355063265 in words is "fifteen trillion, three hundred fifteen billion, three hundred fifty-five million, sixty-three thousand, two hundred sixty-five".