155580480 has 224 divisors, whose sum is σ = 599114880. Its totient is φ = 37693440.

The previous prime is 155580473. The next prime is 155580511. The reversal of 155580480 is 84085551.

155580480 = T₂₈₁ + T₂₈₂ + ... + T₉₈₄.

It is a Harshad number since it is a multiple of its sum of digits (36).

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 31 ways as a sum of consecutive naturals, for example, 94222 + ... + 95858.

It is an arithmetic number, because the mean of its divisors is an integer number (2674620).

Almost surely, 2^155580480 is an apocalyptic number.

155580480 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 155580480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (299557440).

155580480 is an abundant number, since it is smaller than the sum of its proper divisors (443534400).

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

155580480 is a wasteful number, since it uses less digits than its factorization.

155580480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1674 (or 1658 counting only the distinct ones).

The product of its (nonzero) digits is 32000, while the sum is 36.

The square root of 155580480 is about 12473.1904499210. The cubic root of 155580480 is about 537.8382712927.

The spelling of 155580480 in words is "one hundred fifty-five million, five hundred eighty thousand, four hundred eighty".