662081874653 has 2 divisors, whose sum is σ = 662081874654. Its totient is φ = 662081874652.

The previous prime is 662081874647. The next prime is 662081874673. The reversal of 662081874653 is 356478180266.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 484029101284 + 178052773369 = 695722^2 + 421963^2 .

It is a cyclic number.

It is not a de Polignac number, because 662081874653 - 2¹² = 662081870557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (662081874673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 331040937326 + 331040937327.

It is an arithmetic number, because the mean of its divisors is an integer number (331040937327).

Almost surely, 2^662081874653 is an apocalyptic number.

It is an amenable number.

662081874653 is a deficient number, since it is larger than the sum of its proper divisors (1).

662081874653 is an equidigital number, since it uses as much as digits as its factorization.

662081874653 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11612160, while the sum is 56.

The spelling of 662081874653 in words is "six hundred sixty-two billion, eighty-one million, eight hundred seventy-four thousand, six hundred fifty-three".