355056421340 has 12 divisors (see below), whose sum is σ = 745618484856. Its totient is φ = 142022568528.

The previous prime is 355056421339. The next prime is 355056421351. The reversal of 355056421340 is 43124650553.

It is a junction number, because it is equal to n+sod(n) for n = 355056421294 and 355056421303.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 8876410514 + ... + 8876410553.

It is an arithmetic number, because the mean of its divisors is an integer number (62134873738).

Almost surely, 2^355056421340 is an apocalyptic number.

It is an amenable number.

355056421340 is an abundant number, since it is smaller than the sum of its proper divisors (390562063516).

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

355056421340 is a wasteful number, since it uses less digits than its factorization.

355056421340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17752821076 (or 17752821074 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 38.

The spelling of 355056421340 in words is "three hundred fifty-five billion, fifty-six million, four hundred twenty-one thousand, three hundred forty".