355406978456 has 32 divisors (see below), whose sum is σ = 676387593840. Its totient is φ = 175037372928.

The previous prime is 355406978419. The next prime is 355406978477. The reversal of 355406978456 is 654879604553.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11472620 + ... + 11503556.

Almost surely, 2^355406978456 is an apocalyptic number.

It is an amenable number.

355406978456 is a deficient number, since it is larger than the sum of its proper divisors (320980615384).

355406978456 is a wasteful number, since it uses less digits than its factorization.

355406978456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52443 (or 52439 counting only the distinct ones).

The product of its (nonzero) digits is 108864000, while the sum is 62.

The spelling of 355406978456 in words is "three hundred fifty-five billion, four hundred six million, nine hundred seventy-eight thousand, four hundred fifty-six".