667205002 has 12 divisors (see below), whose sum is σ = 1034136018. Its totient is φ = 322840200.

The previous prime is 667204991. The next prime is 667205003. The reversal of 667205002 is 200502766.

It can be written as a sum of positive squares in only one way, i.e., 663629121 + 3575881 = 25761^2 + 1891^2 .

It is not an unprimeable number, because it can be changed into a prime (667205003) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 171649 + ... + 175492.

Almost surely, 2^667205002 is an apocalyptic number.

667205002 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

667205002 is a deficient number, since it is larger than the sum of its proper divisors (366931016).

667205002 is a wasteful number, since it uses less digits than its factorization.

667205002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347205 (or 347174 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 667205002 is about 25830.3116899506. The cubic root of 667205002 is about 873.8155410880.

Adding to 667205002 its reverse (200502766), we get a palindrome (867707768).

The spelling of 667205002 in words is "six hundred sixty-seven million, two hundred five thousand, two".