31160260866 has 64 divisors (see below), whose sum is σ = 73749761280. Its totient is φ = 8587729920.

The previous prime is 31160260849. The next prime is 31160260867. The reversal of 31160260866 is 66806206113.

It is not an unprimeable number, because it can be changed into a prime (31160260867) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1324486 + ... + 1347806.

It is an arithmetic number, because the mean of its divisors is an integer number (1152340020).

Almost surely, 2^31160260866 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31160260866, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36874880640).

31160260866 is an abundant number, since it is smaller than the sum of its proper divisors (42589500414).

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

31160260866 is a wasteful number, since it uses less digits than its factorization.

31160260866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24459.

The product of its (nonzero) digits is 62208, while the sum is 39.

Adding to 31160260866 its reverse (66806206113), we get a palindrome (97966466979).

The spelling of 31160260866 in words is "thirty-one billion, one hundred sixty million, two hundred sixty thousand, eight hundred sixty-six".