656250625061 has 2 divisors, whose sum is σ = 656250625062. Its totient is φ = 656250625060.

The previous prime is 656250625057. The next prime is 656250625067. The reversal of 656250625061 is 160526052656.

656250625061 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 349761056836 + 306489568225 = 591406^2 + 553615^2 .

It is a cyclic number.

It is not a de Polignac number, because 656250625061 - 2² = 656250625057 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (656250625067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 328125312530 + 328125312531.

It is an arithmetic number, because the mean of its divisors is an integer number (328125312531).

Almost surely, 2^656250625061 is an apocalyptic number.

It is an amenable number.

656250625061 is a deficient number, since it is larger than the sum of its proper divisors (1).

656250625061 is an equidigital number, since it uses as much as digits as its factorization.

656250625061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648000, while the sum is 44.

The spelling of 656250625061 in words is "six hundred fifty-six billion, two hundred fifty million, six hundred twenty-five thousand, sixty-one".