4161591040 has 36 divisors (see below), whose sum is σ = 9968314104. Its totient is φ = 1664635904.

The previous prime is 4161591023. The next prime is 4161591053. The reversal of 4161591040 is 401951614.

It is a junction number, because it is equal to n+sod(n) for n = 4161590993 and 4161591011.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1624342 + ... + 1626901.

It is an arithmetic number, because the mean of its divisors is an integer number (276897614).

Almost surely, 2^4161591040 is an apocalyptic number.

4161591040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4161591040 is an abundant number, since it is smaller than the sum of its proper divisors (5806723064).

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

4161591040 is an equidigital number, since it uses as much as digits as its factorization.

4161591040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3251264 (or 3251250 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 4161591040 is about 64510.3948212999. The cubic root of 4161591040 is about 1608.4953136962.

The spelling of 4161591040 in words is "four billion, one hundred sixty-one million, five hundred ninety-one thousand, forty".