662111143423 has 8 divisors (see below), whose sum is σ = 737956692720. Its totient is φ = 590365353600.

The previous prime is 662111143409. The next prime is 662111143429. The reversal of 662111143423 is 324341111266.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-662111143423 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 (662111143429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1024939528 + ... + 1024940173.

It is an arithmetic number, because the mean of its divisors is an integer number (92244586590).

Almost surely, 2^662111143423 is an apocalyptic number.

662111143423 is a deficient number, since it is larger than the sum of its proper divisors (75845549297).

662111143423 is a wasteful number, since it uses less digits than its factorization.

662111143423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2049879737.

The product of its digits is 20736, while the sum is 34.

Adding to 662111143423 its reverse (324341111266), we get a palindrome (986452254689).

The spelling of 662111143423 in words is "six hundred sixty-two billion, one hundred eleven million, one hundred forty-three thousand, four hundred twenty-three".