662253230656663 has 4 divisors (see below), whose sum is σ = 662321652324640. Its totient is φ = 662184808988688.

The previous prime is 662253230656649. The next prime is 662253230656687. The reversal of 662253230656663 is 366656032352266.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-662253230656663 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (662253230656463) 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, 34210819470 + ... + 34210838827.

It is an arithmetic number, because the mean of its divisors is an integer number (165580413081160).

Almost surely, 2^{662253230656663} is an apocalyptic number.

662253230656663 is a deficient number, since it is larger than the sum of its proper divisors (68421667977).

662253230656663 is an equidigital number, since it uses as much as digits as its factorization.

662253230656663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68421667976.

The product of its (nonzero) digits is 251942400, while the sum is 61.

The spelling of 662253230656663 in words is "six hundred sixty-two trillion, two hundred fifty-three billion, two hundred thirty million, six hundred fifty-six thousand, six hundred sixty-three".