155494080 has 280 divisors, whose sum is σ = 632874528. Its totient is φ = 35500032.

The previous prime is 155494061. The next prime is 155494093. The reversal of 155494080 is 80494551.

It is a tau number, because it is divible by the number of its divisors (280).

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

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 181012 + ... + 181868.

Almost surely, 2^155494080 is an apocalyptic number.

155494080 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 155494080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (316437264).

155494080 is an abundant number, since it is smaller than the sum of its proper divisors (477380448).

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

155494080 is an equidigital number, since it uses as much as digits as its factorization.

155494080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 893 (or 874 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The square root of 155494080 is about 12469.7265407065. The cubic root of 155494080 is about 537.7386918953.

The spelling of 155494080 in words is "one hundred fifty-five million, four hundred ninety-four thousand, eighty".