2061537580 has 12 divisors (see below), whose sum is σ = 4329228960. Its totient is φ = 824615024.

The previous prime is 2061537571. The next prime is 2061537581. The reversal of 2061537580 is 857351602.

It is a super-3 number, since 3×2061537580³ (a number of 29 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (2061537581) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51538420 + ... + 51538459.

It is an arithmetic number, because the mean of its divisors is an integer number (360769080).

Almost surely, 2^2061537580 is an apocalyptic number.

2061537580 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2061537580 is an abundant number, since it is smaller than the sum of its proper divisors (2267691380).

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

2061537580 is a wasteful number, since it uses less digits than its factorization.

2061537580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103076888 (or 103076886 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 37.

The square root of 2061537580 is about 45404.1581796205. The cubic root of 2061537580 is about 1272.7128197153.

The spelling of 2061537580 in words is "two billion, sixty-one million, five hundred thirty-seven thousand, five hundred eighty".