2061611740 has 48 divisors (see below), whose sum is σ = 4489843680. Its totient is φ = 794223360.

The previous prime is 2061611731. The next prime is 2061611749. The reversal of 2061611740 is 471161602.

It is an interprime number because it is at equal distance from previous prime (2061611731) and next prime (2061611749).

It is a junction number, because it is equal to n+sod(n) for n = 2061611699 and 2061611708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2061611749) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 239959 + ... + 248401.

It is an arithmetic number, because the mean of its divisors is an integer number (93538410).

Almost surely, 2^2061611740 is an apocalyptic number.

2061611740 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 2061611740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2244921840).

2061611740 is an abundant number, since it is smaller than the sum of its proper divisors (2428231940).

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

2061611740 is a wasteful number, since it uses less digits than its factorization.

2061611740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8902 (or 8900 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 2061611740 is about 45404.9748375660. The cubic root of 2061611740 is about 1272.7280806952.

The spelling of 2061611740 in words is "two billion, sixty-one million, six hundred eleven thousand, seven hundred forty".