681366060 has 48 divisors (see below), whose sum is σ = 2119807200. Its totient is φ = 181697472.

The previous prime is 681366041. The next prime is 681366061. The reversal of 681366060 is 60663186.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (681366061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 630355 + ... + 631434.

It is an arithmetic number, because the mean of its divisors is an integer number (44162650).

Almost surely, 2^681366060 is an apocalyptic number.

681366060 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

681366060 is an abundant number, since it is smaller than the sum of its proper divisors (1438441140).

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

681366060 is a wasteful number, since it uses less digits than its factorization.

681366060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1261807 (or 1261799 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 681366060 is about 26102.9894839652. The cubic root of 681366060 is about 879.9543967415.

The spelling of 681366060 in words is "six hundred eighty-one million, three hundred sixty-six thousand, sixty".