155218296 has 64 divisors (see below), whose sum is σ = 432518400. Its totient is φ = 46130688.

The previous prime is 155218267. The next prime is 155218303. The reversal of 155218296 is 692812551.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2260 + ... + 17763.

It is an arithmetic number, because the mean of its divisors is an integer number (6758100).

Almost surely, 2^155218296 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 155218296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (216259200).

155218296 is an abundant number, since it is smaller than the sum of its proper divisors (277300104).

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

155218296 is a wasteful number, since it uses less digits than its factorization.

155218296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20068 (or 20064 counting only the distinct ones).

The product of its digits is 43200, while the sum is 39.

The square root of 155218296 is about 12458.6634917233. The cubic root of 155218296 is about 537.4205929927.

The spelling of 155218296 in words is "one hundred fifty-five million, two hundred eighteen thousand, two hundred ninety-six".