155810480 has 40 divisors (see below), whose sum is σ = 414012192. Its totient is φ = 53420544.

The previous prime is 155810477. The next prime is 155810497. The reversal of 155810480 is 84018551.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 138557 + ... + 139676.

Almost surely, 2^155810480 is an apocalyptic number.

155810480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

155810480 is an abundant number, since it is smaller than the sum of its proper divisors (258201712).

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

155810480 is a wasteful number, since it uses less digits than its factorization.

155810480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278253 (or 278247 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 32.

The square root of 155810480 is about 12482.4068191996. The cubic root of 155810480 is about 538.1031757640.

The spelling of 155810480 in words is "one hundred fifty-five million, eight hundred ten thousand, four hundred eighty".