1170158220 has 288 divisors, whose sum is σ = 4518259200. Its totient is φ = 243008640.

The previous prime is 1170158179. The next prime is 1170158233. The reversal of 1170158220 is 228510711.

1170158220 is a `hidden beast` number, since 11 + 70 + 1 + 582 + 2 + 0 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 678279 + ... + 680001.

It is an arithmetic number, because the mean of its divisors is an integer number (15688400).

Almost surely, 2^1170158220 is an apocalyptic number.

1170158220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1170158220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2259129600).

1170158220 is an abundant number, since it is smaller than the sum of its proper divisors (3348100980).

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

1170158220 is a wasteful number, since it uses less digits than its factorization.

1170158220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1770 (or 1751 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 27.

The square root of 1170158220 is about 34207.5754767858. The cubic root of 1170158220 is about 1053.7757397156.

Adding to 1170158220 its reverse (228510711), we get a palindrome (1398668931).

The spelling of 1170158220 in words is "one billion, one hundred seventy million, one hundred fifty-eight thousand, two hundred twenty".