64990180002 has 32 divisors (see below), whose sum is σ = 141833502720. Its totient is φ = 19688890320.

The previous prime is 64990180001. The next prime is 64990180009. The reversal of 64990180002 is 20008109946.

It is not an unprimeable number, because it can be changed into a prime (64990180001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 133023 + ... + 384285.

It is an arithmetic number, because the mean of its divisors is an integer number (4432296960).

Almost surely, 2^64990180002 is an apocalyptic number.

64990180002 is an abundant number, since it is smaller than the sum of its proper divisors (76843322718).

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

64990180002 is a wasteful number, since it uses less digits than its factorization.

64990180002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255198.

The product of its (nonzero) digits is 31104, while the sum is 39.

Adding to 64990180002 its reverse (20008109946), we get a palindrome (84998289948).

The spelling of 64990180002 in words is "sixty-four billion, nine hundred ninety million, one hundred eighty thousand, two".