1316540214265 has 4 divisors (see below), whose sum is σ = 1579848257124. Its totient is φ = 1053232171408.

The previous prime is 1316540214259. The next prime is 1316540214277. The reversal of 1316540214265 is 5624120456131.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1003625279721 + 312914934544 = 1001811^2 + 559388^2 .

It is a cyclic number.

It is not a de Polignac number, because 1316540214265 - 2⁷ = 1316540214137 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 131654021422 + ... + 131654021431.

It is an arithmetic number, because the mean of its divisors is an integer number (394962064281).

Almost surely, 2^{1316540214265} is an apocalyptic number.

It is an amenable number.

1316540214265 is a deficient number, since it is larger than the sum of its proper divisors (263308042859).

1316540214265 is an equidigital number, since it uses as much as digits as its factorization.

1316540214265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263308042858.

The product of its (nonzero) digits is 172800, while the sum is 40.

The spelling of 1316540214265 in words is "one trillion, three hundred sixteen billion, five hundred forty million, two hundred fourteen thousand, two hundred sixty-five".