662403420432 has 320 divisors, whose sum is σ = 2153562163200. Its totient is φ = 193517475840.

The previous prime is 662403420397. The next prime is 662403420433. The reversal of 662403420432 is 234024304266.

662403420432 is a `hidden beast` number, since 6 + 624 + 0 + 3 + 4 + 20 + 4 + 3 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (662403420433) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9191194 + ... + 9262982.

It is an arithmetic number, because the mean of its divisors is an integer number (6729881760).

Almost surely, 2^662403420432 is an apocalyptic number.

662403420432 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 662403420432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1076781081600).

662403420432 is an abundant number, since it is smaller than the sum of its proper divisors (1491158742768).

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

662403420432 is a wasteful number, since it uses less digits than its factorization.

662403420432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71903 (or 71891 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 36.

Adding to 662403420432 its reverse (234024304266), we get a palindrome (896427724698).

It can be divided in two parts, 6624034 and 20432, that added together give a palindrome (6644466).

The spelling of 662403420432 in words is "six hundred sixty-two billion, four hundred three million, four hundred twenty thousand, four hundred thirty-two".