155516800 has 96 divisors (see below), whose sum is σ = 401068080. Its totient is φ = 59473920.

The previous prime is 155516797. The next prime is 155516807. The reversal of 155516800 is 8615551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155516807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 72544 + ... + 74656.

Almost surely, 2^155516800 is an apocalyptic number.

155516800 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 155516800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (200534040).

155516800 is an abundant number, since it is smaller than the sum of its proper divisors (245551280).

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

155516800 is a wasteful number, since it uses less digits than its factorization.

155516800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2160 (or 2143 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 31.

The square root of 155516800 is about 12470.6375137761. The cubic root of 155516800 is about 537.7648811626.

The spelling of 155516800 in words is "one hundred fifty-five million, five hundred sixteen thousand, eight hundred".