155353320442 has 8 divisors (see below), whose sum is σ = 233208825696. Its totient is φ = 77617045212.

The previous prime is 155353320413. The next prime is 155353320497. The reversal of 155353320442 is 244023353551.

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

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, 29804248 + ... + 29809459.

It is an arithmetic number, because the mean of its divisors is an integer number (29151103212).

Almost surely, 2^155353320442 is an apocalyptic number.

155353320442 is a deficient number, since it is larger than the sum of its proper divisors (77855505254).

155353320442 is a wasteful number, since it uses less digits than its factorization.

155353320442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59615012.

The product of its (nonzero) digits is 216000, while the sum is 37.

Adding to 155353320442 its reverse (244023353551), we get a palindrome (399376673993).

The spelling of 155353320442 in words is "one hundred fifty-five billion, three hundred fifty-three million, three hundred twenty thousand, four hundred forty-two".