656031442406 has 16 divisors (see below), whose sum is σ = 998858440944. Its totient is φ = 323102083584.

The previous prime is 656031442403. The next prime is 656031442411. The reversal of 656031442406 is 604244130656.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (656031442403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5807555 + ... + 5919438.

It is an arithmetic number, because the mean of its divisors is an integer number (62428652559).

Almost surely, 2^656031442406 is an apocalyptic number.

656031442406 is a deficient number, since it is larger than the sum of its proper divisors (342826998538).

656031442406 is a wasteful number, since it uses less digits than its factorization.

656031442406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11727415.

The product of its (nonzero) digits is 414720, while the sum is 41.

The spelling of 656031442406 in words is "six hundred fifty-six billion, thirty-one million, four hundred forty-two thousand, four hundred six".