155655448 has 64 divisors (see below), whose sum is σ = 339948000. Its totient is φ = 66189312.

The previous prime is 155655439. The next prime is 155655449. The reversal of 155655448 is 844556551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155655449) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72048 + ... + 74176.

Almost surely, 2^155655448 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 155655448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (169974000).

155655448 is an abundant number, since it is smaller than the sum of its proper divisors (184292552).

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

155655448 is a wasteful number, since it uses less digits than its factorization.

155655448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2204 (or 2200 counting only the distinct ones).

The product of its digits is 480000, while the sum is 43.

The square root of 155655448 is about 12476.1952533615. The cubic root of 155655448 is about 537.9246449924.

The spelling of 155655448 in words is "one hundred fifty-five million, six hundred fifty-five thousand, four hundred forty-eight".