1170566920 has 32 divisors (see below), whose sum is σ = 2648505600. Its totient is φ = 465608128.

The previous prime is 1170566869. The next prime is 1170566923. The reversal of 1170566920 is 296650711.

It is a self number, because there is not a number n which added to its sum of digits gives 1170566920.

It is not an unprimeable number, because it can be changed into a prime (1170566923) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74584 + ... + 88903.

It is an arithmetic number, because the mean of its divisors is an integer number (82765800).

Almost surely, 2^1170566920 is an apocalyptic number.

1170566920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1170566920 is an abundant number, since it is smaller than the sum of its proper divisors (1477938680).

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

1170566920 is a wasteful number, since it uses less digits than its factorization.

1170566920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163677 (or 163673 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 37.

The square root of 1170566920 is about 34213.5487782253. The cubic root of 1170566920 is about 1053.8984091708.

The spelling of 1170566920 in words is "one billion, one hundred seventy million, five hundred sixty-six thousand, nine hundred twenty".