1166620210 has 64 divisors (see below), whose sum is σ = 2490808320. Its totient is φ = 384975360.

The previous prime is 1166620201. The next prime is 1166620243. The reversal of 1166620210 is 120266611.

It is a super-2 number, since 2×1166620210² = 2722005428760888200, which contains 22 as substring.

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, 426126 + ... + 428854.

It is an arithmetic number, because the mean of its divisors is an integer number (38918880).

Almost surely, 2^1166620210 is an apocalyptic number.

1166620210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1166620210 is an abundant number, since it is smaller than the sum of its proper divisors (1324188110).

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

1166620210 is a wasteful number, since it uses less digits than its factorization.

1166620210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2971.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 1166620210 is about 34155.8224904627. The cubic root of 1166620210 is about 1052.7126262329.

Adding to 1166620210 its reverse (120266611), we get a palindrome (1286886821).

The spelling of 1166620210 in words is "one billion, one hundred sixty-six million, six hundred twenty thousand, two hundred ten".