155532224944 has 30 divisors (see below), whose sum is σ = 317217904220. Its totient is φ = 73669902048.

The previous prime is 155532224933. The next prime is 155532224977. The reversal of 155532224944 is 449422235551.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 155532224894 and 155532224903.

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 5 ways as a sum of consecutive naturals, for example, 6864867 + ... + 6887485.

Almost surely, 2^155532224944 is an apocalyptic number.

It is an amenable number.

155532224944 is an abundant number, since it is smaller than the sum of its proper divisors (161685679276).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

155532224944 is an frugal number, since it uses more digits than its factorization.

155532224944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45265 (or 22640 counting only the distinct ones).

The product of its digits is 1728000, while the sum is 46.

The spelling of 155532224944 in words is "one hundred fifty-five billion, five hundred thirty-two million, two hundred twenty-four thousand, nine hundred forty-four".