155019448080 has 640 divisors, whose sum is σ = 649091788800. Its totient is φ = 33216086016.

The previous prime is 155019448043. The next prime is 155019448141. The reversal of 155019448080 is 80844910551.

It is a happy number.

155019448080 is a `hidden beast` number, since 1 + 5 + 5 + 0 + 1 + 94 + 480 + 80 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 27863379 + ... + 27868941.

It is an arithmetic number, because the mean of its divisors is an integer number (1014205920).

Almost surely, 2^155019448080 is an apocalyptic number.

155019448080 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 155019448080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (324545894400).

155019448080 is an abundant number, since it is smaller than the sum of its proper divisors (494072340720).

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

155019448080 is a wasteful number, since it uses less digits than its factorization.

155019448080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5708 (or 5696 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 45.

The spelling of 155019448080 in words is "one hundred fifty-five billion, nineteen million, four hundred forty-eight thousand, eighty".