650660002 has 4 divisors (see below), whose sum is σ = 975990006. Its totient is φ = 325330000.

The previous prime is 650659969. The next prime is 650660039. The reversal of 650660002 is 200066056.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 397563721 + 253096281 = 19939^2 + 15909^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 162664999 + ... + 162665002.

Almost surely, 2^650660002 is an apocalyptic number.

650660002 is a deficient number, since it is larger than the sum of its proper divisors (325330004).

650660002 is a wasteful number, since it uses less digits than its factorization.

650660002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325330003.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 650660002 is about 25508.0379880539. The cubic root of 650660002 is about 866.5321956719.

The spelling of 650660002 in words is "six hundred fifty million, six hundred sixty thousand, two".