64006642011 has 16 divisors (see below), whose sum is σ = 92022333984. Its totient is φ = 39339262464.

The previous prime is 64006642003. The next prime is 64006642031. The reversal of 64006642011 is 11024660046.

It is not a de Polignac number, because 64006642011 - 2³ = 64006642003 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 64006642011.

It is not an unprimeable number, because it can be changed into a prime (64006642031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 998526 + ... + 1060691.

It is an arithmetic number, because the mean of its divisors is an integer number (5751395874).

Almost surely, 2^64006642011 is an apocalyptic number.

64006642011 is a deficient number, since it is larger than the sum of its proper divisors (28015691973).

64006642011 is a wasteful number, since it uses less digits than its factorization.

64006642011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2060030.

The product of its (nonzero) digits is 6912, while the sum is 30.

The spelling of 64006642011 in words is "sixty-four billion, six million, six hundred forty-two thousand, eleven".