161160550 has 12 divisors (see below), whose sum is σ = 299758716. Its totient is φ = 64464200.

The previous prime is 161160541. The next prime is 161160551. The reversal of 161160550 is 55061161.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161160551) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1611556 + ... + 1611655.

It is an arithmetic number, because the mean of its divisors is an integer number (24979893).

Almost surely, 2^161160550 is an apocalyptic number.

161160550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

161160550 is a deficient number, since it is larger than the sum of its proper divisors (138598166).

161160550 is a wasteful number, since it uses less digits than its factorization.

161160550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3223223 (or 3223218 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 25.

The square root of 161160550 is about 12694.9025203032. The cubic root of 161160550 is about 544.1929530169.

The spelling of 161160550 in words is "one hundred sixty-one million, one hundred sixty thousand, five hundred fifty".