15315143551513 has 16 divisors (see below), whose sum is σ = 16576183915200. Its totient is φ = 14066128028736.

The previous prime is 15315143551481. The next prime is 15315143551559. The reversal of 15315143551513 is 31515534151351.

It is a cyclic number.

It is not a de Polignac number, because 15315143551513 - 2⁵ = 15315143551481 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 15315143551513.

It is not an unprimeable number, because it can be changed into a prime (15315143551313) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1528338 + ... + 5741611.

It is an arithmetic number, because the mean of its divisors is an integer number (1036011494700).

Almost surely, 2^{15315143551513} is an apocalyptic number.

15315143551513 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

15315143551513 is a deficient number, since it is larger than the sum of its proper divisors (1261040363687).

15315143551513 is a wasteful number, since it uses less digits than its factorization.

15315143551513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7270776.

The product of its digits is 337500, while the sum is 43.

The spelling of 15315143551513 in words is "fifteen trillion, three hundred fifteen billion, one hundred forty-three million, five hundred fifty-one thousand, five hundred thirteen".