316161644 has 6 divisors (see below), whose sum is σ = 553282884. Its totient is φ = 158080820.

The previous prime is 316161583. The next prime is 316161647. The reversal of 316161644 is 446161613.

It is a self number, because there is not a number n which added to its sum of digits gives 316161644.

It is not an unprimeable number, because it can be changed into a prime (316161647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39520202 + ... + 39520209.

It is an arithmetic number, because the mean of its divisors is an integer number (92213814).

Almost surely, 2^316161644 is an apocalyptic number.

It is an amenable number.

316161644 is a deficient number, since it is larger than the sum of its proper divisors (237121240).

316161644 is a wasteful number, since it uses less digits than its factorization.

316161644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79040415 (or 79040413 counting only the distinct ones).

The product of its digits is 10368, while the sum is 32.

The square root of 316161644 is about 17780.9348460648. The cubic root of 316161644 is about 681.2445805590.

The spelling of 316161644 in words is "three hundred sixteen million, one hundred sixty-one thousand, six hundred forty-four".