155253347448 has 32 divisors (see below), whose sum is σ = 391760789760. Its totient is φ = 51267459680.

The previous prime is 155253347419. The next prime is 155253347539. The reversal of 155253347448 is 844743352551.

It is a super-2 number, since 2×155253347448² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 155253347448.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30225888 + ... + 30231023.

It is an arithmetic number, because the mean of its divisors is an integer number (12242524680).

Almost surely, 2^155253347448 is an apocalyptic number.

It is an amenable number.

155253347448 is an abundant number, since it is smaller than the sum of its proper divisors (236507442312).

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

155253347448 is a wasteful number, since it uses less digits than its factorization.

155253347448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60457027 (or 60457023 counting only the distinct ones).

The product of its digits is 8064000, while the sum is 51.

Adding to 155253347448 its reverse (844743352551), we get a palindrome (999996699999).

The spelling of 155253347448 in words is "one hundred fifty-five billion, two hundred fifty-three million, three hundred forty-seven thousand, four hundred forty-eight".