651606661614 has 64 divisors (see below), whose sum is σ = 1370700610560. Its totient is φ = 206108897280.

The previous prime is 651606661609. The next prime is 651606661627. The reversal of 651606661614 is 416166606156.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13864447 + ... + 13911365.

It is an arithmetic number, because the mean of its divisors is an integer number (21417197040).

Almost surely, 2^651606661614 is an apocalyptic number.

651606661614 is an abundant number, since it is smaller than the sum of its proper divisors (719093948946).

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

651606661614 is a wasteful number, since it uses less digits than its factorization.

651606661614 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47745.

The product of its (nonzero) digits is 933120, while the sum is 48.

The spelling of 651606661614 in words is "six hundred fifty-one billion, six hundred six million, six hundred sixty-one thousand, six hundred fourteen".