1161000550 has 96 divisors (see below), whose sum is σ = 2350296000. Its totient is φ = 425103360.

The previous prime is 1161000523. The next prime is 1161000553. The reversal of 1161000550 is 550001611.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1161000553) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7791876 + ... + 7792024.

It is an arithmetic number, because the mean of its divisors is an integer number (24482250).

Almost surely, 2^1161000550 is an apocalyptic number.

1161000550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1161000550 is an abundant number, since it is smaller than the sum of its proper divisors (1189295450).

1161000550 is a wasteful number, since it uses less digits than its factorization.

1161000550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370 (or 365 counting only the distinct ones).

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

The square root of 1161000550 is about 34073.4581456007. The cubic root of 1161000550 is about 1051.0195840823.

The spelling of 1161000550 in words is "one billion, one hundred sixty-one million, five hundred fifty", and thus it is an aban number.