155055516 has 48 divisors (see below), whose sum is σ = 451073280. Its totient is φ = 40273920.

The previous prime is 155055499. The next prime is 155055541. The reversal of 155055516 is 615550551.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82981 + ... + 84828.

It is an arithmetic number, because the mean of its divisors is an integer number (9397360).

Almost surely, 2^155055516 is an apocalyptic number.

It is an amenable number.

155055516 is an abundant number, since it is smaller than the sum of its proper divisors (296017764).

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

155055516 is a wasteful number, since it uses less digits than its factorization.

155055516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167834 (or 167832 counting only the distinct ones).

The product of its (nonzero) digits is 18750, while the sum is 33.

The square root of 155055516 is about 12452.1289745971. The cubic root of 155055516 is about 537.2326599864.

The spelling of 155055516 in words is "one hundred fifty-five million, fifty-five thousand, five hundred sixteen".