1550155568 has 40 divisors (see below), whose sum is σ = 3237688608. Its totient is φ = 714742272.

The previous prime is 1550155561. The next prime is 1550155571. The reversal of 1550155568 is 8655510551.

It is not an unprimeable number, because it can be changed into a prime (1550155561) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 245021 + ... + 251267.

Almost surely, 2^1550155568 is an apocalyptic number.

It is an amenable number.

1550155568 is an abundant number, since it is smaller than the sum of its proper divisors (1687533040).

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

1550155568 is a wasteful number, since it uses less digits than its factorization.

1550155568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7461 (or 7455 counting only the distinct ones).

The product of its (nonzero) digits is 150000, while the sum is 41.

The square root of 1550155568 is about 39372.0150360634. The cubic root of 1550155568 is about 1157.3332438161. Note that the first 3 decimals are identical.

The spelling of 1550155568 in words is "one billion, five hundred fifty million, one hundred fifty-five thousand, five hundred sixty-eight".