651545545106 has 8 divisors (see below), whose sum is σ = 977335086924. Its totient is φ = 325767182800.

The previous prime is 651545545087. The next prime is 651545545111. The reversal of 651545545106 is 601545545156.

It can be written as a sum of positive squares in 2 ways, for example, as 461441697025 + 190103848081 = 679295^2 + 436009^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 2647625 + ... + 2883228.

Almost surely, 2^651545545106 is an apocalyptic number.

651545545106 is a deficient number, since it is larger than the sum of its proper divisors (325789541818).

651545545106 is a wasteful number, since it uses less digits than its factorization.

651545545106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5589756.

The product of its (nonzero) digits is 1800000, while the sum is 47.

The spelling of 651545545106 in words is "six hundred fifty-one billion, five hundred forty-five million, five hundred forty-five thousand, one hundred six".