664002102 has 8 divisors (see below), whose sum is σ = 1328004216. Its totient is φ = 221334032.

The previous prime is 664002091. The next prime is 664002103. The reversal of 664002102 is 201200466.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

664002102 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (664002103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55333503 + ... + 55333514.

It is an arithmetic number, because the mean of its divisors is an integer number (166000527).

Almost surely, 2^664002102 is an apocalyptic number.

664002102 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

664002102 is a wasteful number, since it uses less digits than its factorization.

664002102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110667022.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 664002102 is about 25768.2382401281. The cubic root of 664002102 is about 872.4150548796.

Adding to 664002102 its reverse (201200466), we get a palindrome (865202568).

The spelling of 664002102 in words is "six hundred sixty-four million, two thousand, one hundred two".