6540375011 has 4 divisors (see below), whose sum is σ = 6540562224. Its totient is φ = 6540187800.

The previous prime is 6540375001. The next prime is 6540375029. The reversal of 6540375011 is 1105730456.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6540375011 - 2¹⁸ = 6540112867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6540375001) 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, 23900 + ... + 116841.

It is an arithmetic number, because the mean of its divisors is an integer number (1635140556).

Almost surely, 2^6540375011 is an apocalyptic number.

6540375011 is a deficient number, since it is larger than the sum of its proper divisors (187213).

6540375011 is a wasteful number, since it uses less digits than its factorization.

6540375011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187212.

The product of its (nonzero) digits is 12600, while the sum is 32.

The square root of 6540375011 is about 80872.5850396783. The cubic root of 6540375011 is about 1870.1117123726. Note that the first 3 decimals are identical.

The spelling of 6540375011 in words is "six billion, five hundred forty million, three hundred seventy-five thousand, eleven".