680950663401 has 4 divisors (see below), whose sum is σ = 907934217872. Its totient is φ = 453967108932.

The previous prime is 680950663397. The next prime is 680950663453. The reversal of 680950663401 is 104366059086.

680950663401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 680950663401 - 2² = 680950663397 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (680950663301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 113491777231 + ... + 113491777236.

It is an arithmetic number, because the mean of its divisors is an integer number (226983554468).

Almost surely, 2^680950663401 is an apocalyptic number.

It is an amenable number.

680950663401 is a deficient number, since it is larger than the sum of its proper divisors (226983554471).

680950663401 is a wasteful number, since it uses less digits than its factorization.

680950663401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226983554470.

The product of its (nonzero) digits is 933120, while the sum is 48.

The spelling of 680950663401 in words is "six hundred eighty billion, nine hundred fifty million, six hundred sixty-three thousand, four hundred one".