651065115560 has 16 divisors (see below), whose sum is σ = 1464896510100. Its totient is φ = 260426046208.

The previous prime is 651065115559. The next prime is 651065115611. The reversal of 651065115560 is 65511560156.

It can be written as a sum of positive squares in 2 ways, for example, as 593291224516 + 57773891044 = 770254^2 + 240362^2 .

It is a super-2 number, since 2×651065115560² (a number of 24 digits) contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 8138313905 + ... + 8138313984.

Almost surely, 2^651065115560 is an apocalyptic number.

It is an amenable number.

651065115560 is an abundant number, since it is smaller than the sum of its proper divisors (813831394540).

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

651065115560 is a wasteful number, since it uses less digits than its factorization.

651065115560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16276627900 (or 16276627896 counting only the distinct ones).

The product of its (nonzero) digits is 135000, while the sum is 41.

The spelling of 651065115560 in words is "six hundred fifty-one billion, sixty-five million, one hundred fifteen thousand, five hundred sixty".