680017611 has 16 divisors (see below), whose sum is σ = 1115926784. Its totient is φ = 358690464.

The previous prime is 680017567. The next prime is 680017621. The reversal of 680017611 is 116710086.

It is a happy number.

It is not a de Polignac number, because 680017611 - 2⁹ = 680017099 is a prime.

It is not an unprimeable number, because it can be changed into a prime (680017621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1245181 + ... + 1245726.

It is an arithmetic number, because the mean of its divisors is an integer number (69745424).

Almost surely, 2^680017611 is an apocalyptic number.

680017611 is a deficient number, since it is larger than the sum of its proper divisors (435909173).

680017611 is a wasteful number, since it uses less digits than its factorization.

680017611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2490930.

The product of its (nonzero) digits is 2016, while the sum is 30.

The square root of 680017611 is about 26077.1472941348. The cubic root of 680017611 is about 879.3735257943.

Adding to 680017611 its reverse (116710086), we get a palindrome (796727697).

The spelling of 680017611 in words is "six hundred eighty million, seventeen thousand, six hundred eleven".