316151238646 has 4 divisors (see below), whose sum is σ = 474226857972. Its totient is φ = 158075619322.

The previous prime is 316151238593. The next prime is 316151238671. The reversal of 316151238646 is 646832151613.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 646832151613 = 59 ⋅10963256807.

It is a junction number, because it is equal to n+sod(n) for n = 316151238596 and 316151238605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79037809660 + ... + 79037809663.

It is an arithmetic number, because the mean of its divisors is an integer number (118556714493).

Almost surely, 2^316151238646 is an apocalyptic number.

316151238646 is a deficient number, since it is larger than the sum of its proper divisors (158075619326).

316151238646 is a wasteful number, since it uses less digits than its factorization.

316151238646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158075619325.

The product of its digits is 622080, while the sum is 46.

The spelling of 316151238646 in words is "three hundred sixteen billion, one hundred fifty-one million, two hundred thirty-eight thousand, six hundred forty-six".