1161603170 has 64 divisors (see below), whose sum is σ = 2656475136. Its totient is φ = 355760640.

The previous prime is 1161603127. The next prime is 1161603181. The reversal of 1161603170 is 713061611.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7622 + ... + 48798.

It is an arithmetic number, because the mean of its divisors is an integer number (41507424).

Almost surely, 2^1161603170 is an apocalyptic number.

1161603170 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1161603170 is an abundant number, since it is smaller than the sum of its proper divisors (1494871966).

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

1161603170 is a wasteful number, since it uses less digits than its factorization.

1161603170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41235.

The product of its (nonzero) digits is 756, while the sum is 26.

The square root of 1161603170 is about 34082.2999517345. The cubic root of 1161603170 is about 1051.2013973381.

Adding to 1161603170 its reverse (713061611), we get a palindrome (1874664781).

The spelling of 1161603170 in words is "one billion, one hundred sixty-one million, six hundred three thousand, one hundred seventy".