2061159808 has 64 divisors (see below), whose sum is σ = 4265395200. Its totient is φ = 991386112.

The previous prime is 2061159799. The next prime is 2061159809. The reversal of 2061159808 is 8089511602.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×2061159808² = 8496759508229193728, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2061159809) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 352041 + ... + 357847.

It is an arithmetic number, because the mean of its divisors is an integer number (66646800).

Almost surely, 2^2061159808 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 2061159808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2132697600).

2061159808 is an abundant number, since it is smaller than the sum of its proper divisors (2204235392).

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

2061159808 is an equidigital number, since it uses as much as digits as its factorization.

2061159808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5927 (or 5915 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 40.

The square root of 2061159808 is about 45399.9978854625. The cubic root of 2061159808 is about 1272.6350744047.

The spelling of 2061159808 in words is "two billion, sixty-one million, one hundred fifty-nine thousand, eight hundred eight".