2061573120 has 264 divisors, whose sum is σ = 7412334384. Its totient is φ = 549421056.

The previous prime is 2061573113. The next prime is 2061573121. The reversal of 2061573120 is 213751602.

It is a happy number.

2061573120 is a `hidden beast` number, since 20 + 61 + 573 + 12 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2061573121) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1243332 + ... + 1244988.

Almost surely, 2^2061573120 is an apocalyptic number.

2061573120 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 2061573120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3706167192).

2061573120 is an abundant number, since it is smaller than the sum of its proper divisors (5350761264).

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

2061573120 is an equidigital number, since it uses as much as digits as its factorization.

2061573120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1697 (or 1667 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 2061573120 is about 45404.5495517795. The cubic root of 2061573120 is about 1272.7201333428.

The spelling of 2061573120 in words is "two billion, sixty-one million, five hundred seventy-three thousand, one hundred twenty".