656246326012 has 24 divisors (see below), whose sum is σ = 1167603706080. Its totient is φ = 322648455360.

The previous prime is 656246325967. The next prime is 656246326031. The reversal of 656246326012 is 210623642656.

It is a self number, because there is not a number n which added to its sum of digits gives 656246326012.

It is a congruent number.

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, 430113 + ... + 1223719.

It is an arithmetic number, because the mean of its divisors is an integer number (48650154420).

Almost surely, 2^656246326012 is an apocalyptic number.

It is an amenable number.

656246326012 is a deficient number, since it is larger than the sum of its proper divisors (511357380068).

656246326012 is a wasteful number, since it uses less digits than its factorization.

656246326012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 797061 (or 797059 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 43.

Adding to 656246326012 its reverse (210623642656), we get a palindrome (866869968668).

The spelling of 656246326012 in words is "six hundred fifty-six billion, two hundred forty-six million, three hundred twenty-six thousand, twelve".