316565388066 has 64 divisors (see below), whose sum is σ = 685367464320. Its totient is φ = 97149911040.

The previous prime is 316565388049. The next prime is 316565388071. The reversal of 316565388066 is 660883565613.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a junction number, because it is equal to n+sod(n) for n = 316565387997 and 316565388015.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1069450 + ... + 1332986.

It is an arithmetic number, because the mean of its divisors is an integer number (10708866630).

Almost surely, 2^316565388066 is an apocalyptic number.

316565388066 is an abundant number, since it is smaller than the sum of its proper divisors (368802076254).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

316565388066 is a wasteful number, since it uses less digits than its factorization.

316565388066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263859.

The product of its (nonzero) digits is 18662400, while the sum is 57.

The spelling of 316565388066 in words is "three hundred sixteen billion, five hundred sixty-five million, three hundred eighty-eight thousand, sixty-six".