155456000 has 160 divisors (see below), whose sum is σ = 444292992. Its totient is φ = 53145600.

The previous prime is 155455987. The next prime is 155456003. The reversal of 155456000 is 654551.

It is a tau number, because it is divible by the number of its divisors (160).

It is not an unprimeable number, because it can be changed into a prime (155456003) 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, 447827 + ... + 448173.

Almost surely, 2^155456000 is an apocalyptic number.

155456000 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 155456000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (222146496).

155456000 is an abundant number, since it is smaller than the sum of its proper divisors (288836992).

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

155456000 is an frugal number, since it uses more digits than its factorization.

155456000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387 (or 361 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 155456000 is about 12468.1995492533. The cubic root of 155456000 is about 537.6947914861.

The spelling of 155456000 in words is "one hundred fifty-five million, four hundred fifty-six thousand".