2061995520 has 320 divisors, whose sum is σ = 7479521280. Its totient is φ = 480411648.

The previous prime is 2061995513. The next prime is 2061995557. The reversal of 2061995520 is 255991602.

It is a tau number, because it is divible by the number of its divisors (320).

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1896417 + ... + 1897503.

It is an arithmetic number, because the mean of its divisors is an integer number (23373504).

Almost surely, 2^2061995520 is an apocalyptic number.

2061995520 is a gapful number since it is divisible by the number (20) 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 2061995520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3739760640).

2061995520 is an abundant number, since it is smaller than the sum of its proper divisors (5417525760).

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

2061995520 is a wasteful number, since it uses less digits than its factorization.

2061995520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1145 (or 1129 counting only the distinct ones).

The product of its (nonzero) digits is 48600, while the sum is 39.

The square root of 2061995520 is about 45409.2008297878. The cubic root of 2061995520 is about 1272.8070508310.

The spelling of 2061995520 in words is "two billion, sixty-one million, nine hundred ninety-five thousand, five hundred twenty".