2061767560 has 16 divisors (see below), whose sum is σ = 4638977100. Its totient is φ = 824707008.

The previous prime is 2061767551. The next prime is 2061767573. The reversal of 2061767560 is 657671602.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2005427524 + 56340036 = 44782^2 + 7506^2 .

It is a Harshad number since it is a multiple of its sum of digits (40), and also a Moran number because the ratio is a prime number: 51544189 = 2061767560 / (2 + 0 + 6 + 1 + 7 + 6 + 7 + 5 + 6 + 0).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25772055 + ... + 25772134.

Almost surely, 2^2061767560 is an apocalyptic number.

2061767560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2061767560 is an abundant number, since it is smaller than the sum of its proper divisors (2577209540).

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

2061767560 is a wasteful number, since it uses less digits than its factorization.

2061767560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51544200 (or 51544196 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 40.

The square root of 2061767560 is about 45406.6906964161. The cubic root of 2061767560 is about 1272.7601448467.

The spelling of 2061767560 in words is "two billion, sixty-one million, seven hundred sixty-seven thousand, five hundred sixty".