6641262432 has 864 divisors, whose sum is σ = 25813831680. Its totient is φ = 1602478080.

The previous prime is 6641262403. The next prime is 6641262457. The reversal of 6641262432 is 2342621466.

6641262432 is a `hidden beast` number, since 6 + 641 + 2 + 6 + 2 + 4 + 3 + 2 = 666.

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

It is a nude number because it is divisible by every one of its digits.

Its product of digits (82944) is a multiple of the sum of its prime factors (144).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 141303433 + ... + 141303479.

It is an arithmetic number, because the mean of its divisors is an integer number (29877120).

Almost surely, 2^6641262432 is an apocalyptic number.

6641262432 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 6641262432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12906915840).

6641262432 is an abundant number, since it is smaller than the sum of its proper divisors (19172569248).

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

6641262432 is a wasteful number, since it uses less digits than its factorization.

6641262432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144 (or 126 counting only the distinct ones).

The product of its digits is 82944, while the sum is 36.

The square root of 6641262432 is about 81493.9410753953. The cubic root of 6641262432 is about 1879.6783847001.

Adding to 6641262432 its reverse (2342621466), we get a palindrome (8983883898).

The spelling of 6641262432 in words is "six billion, six hundred forty-one million, two hundred sixty-two thousand, four hundred thirty-two".