651561160610 has 16 divisors (see below), whose sum is σ = 1183188941496. Its totient is φ = 258318052608.

The previous prime is 651561160603. The next prime is 651561160639. The reversal of 651561160610 is 16061165156.

It can be written as a sum of positive squares in 4 ways, for example, as 290940493321 + 360620667289 = 539389^2 + 600517^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 288300269 + ... + 288302528.

Almost surely, 2^651561160610 is an apocalyptic number.

651561160610 is a deficient number, since it is larger than the sum of its proper divisors (531627780886).

651561160610 is a wasteful number, since it uses less digits than its factorization.

651561160610 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 576602917.

The product of its (nonzero) digits is 32400, while the sum is 38.

The spelling of 651561160610 in words is "six hundred fifty-one billion, five hundred sixty-one million, one hundred sixty thousand, six hundred ten".