64540011 has 8 divisors (see below), whose sum is σ = 86091264. Its totient is φ = 43007720.

The previous prime is 64540009. The next prime is 64540037. The reversal of 64540011 is 11004546.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 64540011 - 2¹ = 64540009 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 64540011.

It is not an unprimeable number, because it can be changed into a prime (64540081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8446 + ... + 14156.

It is an arithmetic number, because the mean of its divisors is an integer number (10761408).

Almost surely, 2^64540011 is an apocalyptic number.

64540011 is a deficient number, since it is larger than the sum of its proper divisors (21551253).

64540011 is a wasteful number, since it uses less digits than its factorization.

64540011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9481.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 64540011 is about 8033.6797919758. The cubic root of 64540011 is about 401.1218734748.

Adding to 64540011 its reverse (11004546), we get a palindrome (75544557).

The spelling of 64540011 in words is "sixty-four million, five hundred forty thousand, eleven".