662464565928 has 480 divisors, whose sum is σ = 2096660412000. Its totient is φ = 195169201920.

The previous prime is 662464565897. The next prime is 662464565929. The reversal of 662464565928 is 829565464266.

It is a happy number.

662464565928 is a `hidden beast` number, since 6 + 6 + 2 + 4 + 64 + 565 + 9 + 2 + 8 = 666.

It is a super-2 number, since 2×662464565928² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (662464565929) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 1176668575 + ... + 1176669137.

It is an arithmetic number, because the mean of its divisors is an integer number (4368042525).

Almost surely, 2^662464565928 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 662464565928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1048330206000).

662464565928 is an abundant number, since it is smaller than the sum of its proper divisors (1434195846072).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

662464565928 is a wasteful number, since it uses less digits than its factorization.

662464565928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 995 (or 971 counting only the distinct ones).

The product of its digits is 149299200, while the sum is 63.

The spelling of 662464565928 in words is "six hundred sixty-two billion, four hundred sixty-four million, five hundred sixty-five thousand, nine hundred twenty-eight".