42956556656 has 40 divisors (see below), whose sum is σ = 92521828224. Its totient is φ = 19186548480.

The previous prime is 42956556653. The next prime is 42956556659. The reversal of 42956556656 is 65665565924.

It is an interprime number because it is at equal distance from previous prime (42956556653) and next prime (42956556659).

It is a junction number, because it is equal to n+sod(n) for n = 42956556595 and 42956556604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42956556653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3324551 + ... + 3337446.

Almost surely, 2^42956556656 is an apocalyptic number.

It is an amenable number.

42956556656 is an abundant number, since it is smaller than the sum of its proper divisors (49565271568).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42956556656 is a wasteful number, since it uses less digits than its factorization.

42956556656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6662049 (or 6662043 counting only the distinct ones).

The product of its digits is 58320000, while the sum is 59.

The spelling of 42956556656 in words is "forty-two billion, nine hundred fifty-six million, five hundred fifty-six thousand, six hundred fifty-six".