651616606 has 16 divisors (see below), whose sum is σ = 987536880. Its totient is φ = 322444800.

The previous prime is 651616597. The next prime is 651616619. The reversal of 651616606 is 606616156.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 348085 + ... + 349951.

It is an arithmetic number, because the mean of its divisors is an integer number (61721055).

Almost surely, 2^651616606 is an apocalyptic number.

651616606 is a deficient number, since it is larger than the sum of its proper divisors (335920274).

651616606 is a wasteful number, since it uses less digits than its factorization.

651616606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3579.

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 651616606 is about 25526.7821317141. The cubic root of 651616606 is about 866.9566479008.

The spelling of 651616606 in words is "six hundred fifty-one million, six hundred sixteen thousand, six hundred six".