355147223506 has 8 divisors (see below), whose sum is σ = 532728878220. Its totient is φ = 177570930768.

The previous prime is 355147223461. The next prime is 355147223521. The reversal of 355147223506 is 605322741553.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 329895153225 + 25252070281 = 574365^2 + 158909^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×355147223506² (a number of 24 digits) contains 22 as substring.

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, 1170601 + ... + 1442428.

Almost surely, 2^355147223506 is an apocalyptic number.

355147223506 is a deficient number, since it is larger than the sum of its proper divisors (177581654714).

355147223506 is a wasteful number, since it uses less digits than its factorization.

355147223506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2680988.

The product of its (nonzero) digits is 756000, while the sum is 43.

The spelling of 355147223506 in words is "three hundred fifty-five billion, one hundred forty-seven million, two hundred twenty-three thousand, five hundred six".