4166543040 has 168 divisors, whose sum is σ = 14541124080. Its totient is φ = 1010042880.

The previous prime is 4166543011. The next prime is 4166543063. The reversal of 4166543040 is 403456614.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 4166542992 and 4166543010.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 98226 + ... + 134094.

It is an arithmetic number, because the mean of its divisors is an integer number (86554310).

Almost surely, 2^4166543040 is an apocalyptic number.

4166543040 is a gapful number since it is divisible by the number (40) 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 4166543040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7270562040).

4166543040 is an abundant number, since it is smaller than the sum of its proper divisors (10374581040).

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

4166543040 is a wasteful number, since it uses less digits than its factorization.

4166543040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35911 (or 35890 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 33.

The square root of 4166543040 is about 64548.7648216447. The cubic root of 4166543040 is about 1609.1330594874.

Adding to 4166543040 its reverse (403456614), we get a palindrome (4569999654).

It can be divided in two parts, 416 and 6543040, that added together give a palindrome (6543456).

The spelling of 4166543040 in words is "four billion, one hundred sixty-six million, five hundred forty-three thousand, forty".