680180501005 has 4 divisors (see below), whose sum is σ = 816216601212. Its totient is φ = 544144400800.

The previous prime is 680180500981. The next prime is 680180501029. The reversal of 680180501005 is 500105081086.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (680180500981) and next prime (680180501029).

It can be written as a sum of positive squares in 2 ways, for example, as 323621041129 + 356559459876 = 568877^2 + 597126^2 .

It is not a de Polignac number, because 680180501005 - 2¹¹ = 680180498957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68018050096 + ... + 68018050105.

It is an arithmetic number, because the mean of its divisors is an integer number (204054150303).

Almost surely, 2^680180501005 is an apocalyptic number.

It is an amenable number.

680180501005 is a deficient number, since it is larger than the sum of its proper divisors (136036100207).

680180501005 is a wasteful number, since it uses less digits than its factorization.

680180501005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136036100206.

The product of its (nonzero) digits is 9600, while the sum is 34.

The spelling of 680180501005 in words is "six hundred eighty billion, one hundred eighty million, five hundred one thousand, five".