155422080 has 288 divisors, whose sum is σ = 592562880. Its totient is φ = 37509120.

The previous prime is 155422079. The next prime is 155422087. The reversal of 155422080 is 80224551.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (288).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155422087) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 696849 + ... + 697071.

It is an arithmetic number, because the mean of its divisors is an integer number (2057510).

Almost surely, 2^155422080 is an apocalyptic number.

155422080 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 155422080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (296281440).

155422080 is an abundant number, since it is smaller than the sum of its proper divisors (437140800).

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

155422080 is a wasteful number, since it uses less digits than its factorization.

155422080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270 (or 244 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

The square root of 155422080 is about 12466.8392144922. The cubic root of 155422080 is about 537.6556808824.

The spelling of 155422080 in words is "one hundred fifty-five million, four hundred twenty-two thousand, eighty".