316132605505 has 4 divisors (see below), whose sum is σ = 379359126612. Its totient is φ = 252906084400.

The previous prime is 316132605457. The next prime is 316132605533. The reversal of 316132605505 is 505506231613.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 505506231613 = 293 ⋅1725277241.

It can be written as a sum of positive squares in 2 ways, for example, as 74611468801 + 241521136704 = 273151^2 + 491448^2 .

It is not a de Polignac number, because 316132605505 - 2¹⁹ = 316132081217 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, 31613260546 + ... + 31613260555.

It is an arithmetic number, because the mean of its divisors is an integer number (94839781653).

Almost surely, 2^316132605505 is an apocalyptic number.

It is an amenable number.

316132605505 is a deficient number, since it is larger than the sum of its proper divisors (63226521107).

316132605505 is an equidigital number, since it uses as much as digits as its factorization.

316132605505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63226521106.

The product of its (nonzero) digits is 81000, while the sum is 37.

The spelling of 316132605505 in words is "three hundred sixteen billion, one hundred thirty-two million, six hundred five thousand, five hundred five".