664680050202 has 64 divisors (see below), whose sum is σ = 1582934482944. Its totient is φ = 182064870720.

The previous prime is 664680050161. The next prime is 664680050207. The reversal of 664680050202 is 202050086466.

It is not an unprimeable number, because it can be changed into a prime (664680050207) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2246233 + ... + 2524860.

It is an arithmetic number, because the mean of its divisors is an integer number (24733351296).

Almost surely, 2^664680050202 is an apocalyptic number.

664680050202 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

664680050202 is an abundant number, since it is smaller than the sum of its proper divisors (918254432742).

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

664680050202 is a wasteful number, since it uses less digits than its factorization.

664680050202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4771243.

The product of its (nonzero) digits is 138240, while the sum is 39.

The spelling of 664680050202 in words is "six hundred sixty-four billion, six hundred eighty million, fifty thousand, two hundred two".