64646484002 has 32 divisors (see below), whose sum is σ = 99139689072. Its totient is φ = 31608105984.

The previous prime is 64646483999. The next prime is 64646484113. The reversal of 64646484002 is 20048464646.

It can be written as a sum of positive squares in 8 ways, for example, as 47262325201 + 17384158801 = 217399^2 + 131849^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21860708 + ... + 21863664.

Almost surely, 2^64646484002 is an apocalyptic number.

64646484002 is a deficient number, since it is larger than the sum of its proper divisors (34493205070).

64646484002 is a wasteful number, since it uses less digits than its factorization.

64646484002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4262.

The product of its (nonzero) digits is 884736, while the sum is 44.

The spelling of 64646484002 in words is "sixty-four billion, six hundred forty-six million, four hundred eighty-four thousand, two".