155226242446 has 64 divisors (see below), whose sum is σ = 283276880640. Its totient is φ = 62873280000.

The previous prime is 155226242419. The next prime is 155226242461. The reversal of 155226242446 is 644242622551.

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 31 ways as a sum of consecutive naturals, for example, 13502761 + ... + 13514251.

It is an arithmetic number, because the mean of its divisors is an integer number (4426201260).

Almost surely, 2^155226242446 is an apocalyptic number.

155226242446 is a deficient number, since it is larger than the sum of its proper divisors (128050638194).

155226242446 is a wasteful number, since it uses less digits than its factorization.

155226242446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13441.

The product of its digits is 921600, while the sum is 43.

Adding to 155226242446 its reverse (644242622551), we get a palindrome (799468864997).

The spelling of 155226242446 in words is "one hundred fifty-five billion, two hundred twenty-six million, two hundred forty-two thousand, four hundred forty-six".