1000161550 has 12 divisors (see below), whose sum is σ = 1860300576. Its totient is φ = 400064600.

The previous prime is 1000161521. The next prime is 1000161563. The reversal of 1000161550 is 551610001.

1000161550 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10001566 + ... + 10001665.

It is an arithmetic number, because the mean of its divisors is an integer number (155025048).

Almost surely, 2^1000161550 is an apocalyptic number.

1000161550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1000161550 is a deficient number, since it is larger than the sum of its proper divisors (860139026).

1000161550 is a wasteful number, since it uses less digits than its factorization.

1000161550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20003243 (or 20003238 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 19.

The square root of 1000161550 is about 31625.3308283091. The cubic root of 1000161550 is about 1000.0538471004.

Adding to 1000161550 its reverse (551610001), we get a palindrome (1551771551).

The spelling of 1000161550 in words is "one billion, one hundred sixty-one thousand, five hundred fifty".