64211639006 has 4 divisors (see below), whose sum is σ = 96317458512. Its totient is φ = 32105819502.

The previous prime is 64211638999. The next prime is 64211639059. The reversal of 64211639006 is 60093611246.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16052909750 + ... + 16052909753.

It is an arithmetic number, because the mean of its divisors is an integer number (24079364628).

Almost surely, 2^64211639006 is an apocalyptic number.

64211639006 is a deficient number, since it is larger than the sum of its proper divisors (32105819506).

64211639006 is a wasteful number, since it uses less digits than its factorization.

64211639006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32105819505.

The product of its (nonzero) digits is 46656, while the sum is 38.

The spelling of 64211639006 in words is "sixty-four billion, two hundred eleven million, six hundred thirty-nine thousand, six".