656112421346 has 32 divisors (see below), whose sum is σ = 995092217856. Its totient is φ = 324433746000.

The previous prime is 656112421339. The next prime is 656112421351. The reversal of 656112421346 is 643124211656.

It is a super-2 number, since 2×656112421346² (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 15 ways as a sum of consecutive naturals, for example, 183731741 + ... + 183735311.

It is an arithmetic number, because the mean of its divisors is an integer number (31096631808).

Almost surely, 2^656112421346 is an apocalyptic number.

656112421346 is a deficient number, since it is larger than the sum of its proper divisors (338979796510).

656112421346 is a wasteful number, since it uses less digits than its factorization.

656112421346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5918.

The product of its digits is 207360, while the sum is 41.

The spelling of 656112421346 in words is "six hundred fifty-six billion, one hundred twelve million, four hundred twenty-one thousand, three hundred forty-six".