2061540711 has 24 divisors (see below), whose sum is σ = 2994901104. Its totient is φ = 1366485120.

The previous prime is 2061540619. The next prime is 2061540713. The reversal of 2061540711 is 1170451602.

It is a happy number.

2061540711 is a `hidden beast` number, since 2 + 0 + 615 + 40 + 7 + 1 + 1 = 666.

It is not a de Polignac number, because 2061540711 - 2⁹ = 2061540199 is a prime.

It is a super-2 number, since 2×2061540711² = 8499900206220771042, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2061540713) 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, 1559931 + ... + 1561251.

It is an arithmetic number, because the mean of its divisors is an integer number (124787546).

Almost surely, 2^2061540711 is an apocalyptic number.

2061540711 is a deficient number, since it is larger than the sum of its proper divisors (933360393).

2061540711 is a wasteful number, since it uses less digits than its factorization.

2061540711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2191 (or 2188 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The square root of 2061540711 is about 45404.1926588283. The cubic root of 2061540711 is about 1272.7134640340.

The spelling of 2061540711 in words is "two billion, sixty-one million, five hundred forty thousand, seven hundred eleven".