660854382803 has 16 divisors (see below), whose sum is σ = 680226508800. Its totient is φ = 641708924736.

The previous prime is 660854382779. The next prime is 660854382809. The reversal of 660854382803 is 308283458066.

It is a cyclic number.

It is not a de Polignac number, because 660854382803 - 2¹⁶ = 660854317267 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (660854382809) 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, 11710148 + ... + 11766446.

It is an arithmetic number, because the mean of its divisors is an integer number (42514156800).

Almost surely, 2^660854382803 is an apocalyptic number.

660854382803 is a deficient number, since it is larger than the sum of its proper divisors (19372125997).

660854382803 is a wasteful number, since it uses less digits than its factorization.

660854382803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58306.

The product of its (nonzero) digits is 6635520, while the sum is 53.

The spelling of 660854382803 in words is "six hundred sixty billion, eight hundred fifty-four million, three hundred eighty-two thousand, eight hundred three".