355056420656 has 20 divisors (see below), whose sum is σ = 786196360272.
Its totient is φ = 152167037376.
The previous prime is 355056420601. The next prime is 355056420673. The reversal of 355056420656 is 656024650553.
It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.
It is a self number, because there is not a number n which added to its sum of digits gives 355056420656.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1585073195 + ... + 1585073418.
Almost surely, 2355056420656 is an apocalyptic number.
It is an amenable number.
355056420656 is an abundant number, since it is smaller than the sum of its proper divisors (431139939616).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
355056420656 is a wasteful number, since it uses less digits than its factorization.
355056420656 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3170146628 (or 3170146622 counting only the distinct ones).
The product of its (nonzero) digits is 3240000, while the sum is 47.
The spelling of 355056420656 in words is "three hundred fifty-five billion, fifty-six million, four hundred twenty thousand, six hundred fifty-six".