651662010 has 40 divisors (see below), whose sum is σ = 1752248916. Its totient is φ = 173776320.

The previous prime is 651661891. The next prime is 651662017. The reversal of 651662010 is 10266156.

It is a happy number.

651662010 is a `hidden beast` number, since 651 + 6 + 6 + 2 + 0 + 1 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 650097009 + 1565001 = 25497^2 + 1251^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (651662017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 401451 + ... + 403070.

Almost surely, 2^651662010 is an apocalyptic number.

651662010 is an abundant number, since it is smaller than the sum of its proper divisors (1100586906).

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

651662010 is a wasteful number, since it uses less digits than its factorization.

651662010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 804540 (or 804531 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 651662010 is about 25527.6714566762. The cubic root of 651662010 is about 866.9767836601.

It can be divided in two parts, 65166 and 2010, that added together give a palindrome (67176).

The spelling of 651662010 in words is "six hundred fifty-one million, six hundred sixty-two thousand, ten".