315511503664663 has 4 divisors (see below), whose sum is σ = 329229395128368. Its totient is φ = 301793612200960.

The previous prime is 315511503664661. The next prime is 315511503664711. The reversal of 315511503664663 is 366466305115513.

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

It is a cyclic number.

It is not a de Polignac number, because 315511503664663 - 2¹ = 315511503664661 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 (315511503664661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6858945731818 + ... + 6858945731863.

It is an arithmetic number, because the mean of its divisors is an integer number (82307348782092).

Almost surely, 2^{315511503664663} is an apocalyptic number.

315511503664663 is a deficient number, since it is larger than the sum of its proper divisors (13717891463705).

315511503664663 is a wasteful number, since it uses less digits than its factorization.

315511503664663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13717891463704.

The product of its (nonzero) digits is 17496000, while the sum is 55.

The spelling of 315511503664663 in words is "three hundred fifteen trillion, five hundred eleven billion, five hundred three million, six hundred sixty-four thousand, six hundred sixty-three".