662528255423 has 4 divisors (see below), whose sum is σ = 701500505760. Its totient is φ = 623556005088.

The previous prime is 662528255357. The next prime is 662528255437. The reversal of 662528255423 is 324552825266.

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

It is a cyclic number.

It is not a de Polignac number, because 662528255423 - 2⁸ = 662528255167 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 (662528255483) 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, 19486125143 + ... + 19486125176.

It is an arithmetic number, because the mean of its divisors is an integer number (175375126440).

Almost surely, 2^662528255423 is an apocalyptic number.

662528255423 is a deficient number, since it is larger than the sum of its proper divisors (38972250337).

662528255423 is a wasteful number, since it uses less digits than its factorization.

662528255423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38972250336.

The product of its digits is 6912000, while the sum is 50.

The spelling of 662528255423 in words is "six hundred sixty-two billion, five hundred twenty-eight million, two hundred fifty-five thousand, four hundred twenty-three".