64605636620202 has 32 divisors (see below), whose sum is σ = 129271052053440. Its totient is φ = 21525250436480.

The previous prime is 64605636620141. The next prime is 64605636620227. The reversal of 64605636620202 is 20202663650646.

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, 197928052 + ... + 198254192.

It is an arithmetic number, because the mean of its divisors is an integer number (4039720376670).

Almost surely, 2^{64605636620202} is an apocalyptic number.

64605636620202 is an abundant number, since it is smaller than the sum of its proper divisors (64665415433238).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64605636620202 is a wasteful number, since it uses less digits than its factorization.

64605636620202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341318.

The product of its (nonzero) digits is 3732480, while the sum is 48.

The spelling of 64605636620202 in words is "sixty-four trillion, six hundred five billion, six hundred thirty-six million, six hundred twenty thousand, two hundred two".