155550768 has 40 divisors (see below), whose sum is σ = 402355200. Its totient is φ = 51783744.

The previous prime is 155550767. The next prime is 155550779. The reversal of 155550768 is 867055551.

It is not an unprimeable number, because it can be changed into a prime (155550767) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48313 + ... + 51431.

It is an arithmetic number, because the mean of its divisors is an integer number (10058880).

Almost surely, 2^155550768 is an apocalyptic number.

It is an amenable number.

155550768 is an abundant number, since it is smaller than the sum of its proper divisors (246804432).

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

155550768 is a wasteful number, since it uses less digits than its factorization.

155550768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4169 (or 4163 counting only the distinct ones).

The product of its (nonzero) digits is 210000, while the sum is 42.

The square root of 155550768 is about 12471.9993585632. Note that the first 3 decimals coincide. The cubic root of 155550768 is about 537.8040312045.

The spelling of 155550768 in words is "one hundred fifty-five million, five hundred fifty thousand, seven hundred sixty-eight".