155045405100422 has 4 divisors (see below), whose sum is σ = 232568107650636. Its totient is φ = 77522702550210.

The previous prime is 155045405100379. The next prime is 155045405100427. The reversal of 155045405100422 is 224001504540551.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155045405100427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38761351275104 + ... + 38761351275107.

It is an arithmetic number, because the mean of its divisors is an integer number (58142026912659).

Almost surely, 2^{155045405100422} is an apocalyptic number.

155045405100422 is a deficient number, since it is larger than the sum of its proper divisors (77522702550214).

155045405100422 is an equidigital number, since it uses as much as digits as its factorization.

155045405100422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77522702550213.

The product of its (nonzero) digits is 160000, while the sum is 38.

Adding to 155045405100422 its reverse (224001504540551), we get a palindrome (379046909640973).

The spelling of 155045405100422 in words is "one hundred fifty-five trillion, forty-five billion, four hundred five million, one hundred thousand, four hundred twenty-two".