155160240 has 160 divisors (see below), whose sum is σ = 501771456. Its totient is φ = 39628800.

The previous prime is 155160221. The next prime is 155160253. The reversal of 155160240 is 42061551.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 155160240.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 896794 + ... + 896966.

Almost surely, 2^155160240 is an apocalyptic number.

155160240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 155160240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (250885728).

155160240 is an abundant number, since it is smaller than the sum of its proper divisors (346611216).

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

155160240 is a wasteful number, since it uses less digits than its factorization.

155160240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327 (or 321 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 155160240 is about 12456.3333288733. Note that the first 4 decimals coincide. The cubic root of 155160240 is about 537.3535811745.

The spelling of 155160240 in words is "one hundred fifty-five million, one hundred sixty thousand, two hundred forty".