651607071716 has 12 divisors (see below), whose sum is σ = 1207389574188. Its totient is φ = 306638621952.

The previous prime is 651607071697. The next prime is 651607071749. The reversal of 651607071716 is 617170706156.

It can be written as a sum of positive squares in 2 ways, for example, as 278952985600 + 372654086116 = 528160^2 + 610454^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4791228401 + ... + 4791228536.

It is an arithmetic number, because the mean of its divisors is an integer number (100615797849).

Almost surely, 2^651607071716 is an apocalyptic number.

It is an amenable number.

651607071716 is a deficient number, since it is larger than the sum of its proper divisors (555782502472).

651607071716 is a wasteful number, since it uses less digits than its factorization.

651607071716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9582456958 (or 9582456956 counting only the distinct ones).

The product of its (nonzero) digits is 370440, while the sum is 47.

The spelling of 651607071716 in words is "six hundred fifty-one billion, six hundred seven million, seventy-one thousand, seven hundred sixteen".