649662010 has 16 divisors (see below), whose sum is σ = 1169685000. Its totient is φ = 259799616.

The previous prime is 649662007. The next prime is 649662047. The reversal of 649662010 is 10266946.

649662010 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 648262521 + 1399489 = 25461^2 + 1183^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64816 + ... + 74164.

Almost surely, 2^649662010 is an apocalyptic number.

649662010 is a deficient number, since it is larger than the sum of its proper divisors (520022990).

649662010 is a wasteful number, since it uses less digits than its factorization.

649662010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16305.

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 649662010 is about 25488.4681768050. The cubic root of 649662010 is about 866.0889356399.

The spelling of 649662010 in words is "six hundred forty-nine million, six hundred sixty-two thousand, ten".