1162664220 has 48 divisors (see below), whose sum is σ = 3256999200. Its totient is φ = 309897216.

The previous prime is 1162664203. The next prime is 1162664267. The reversal of 1162664220 is 224662611.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 195856 + ... + 201704.

It is an arithmetic number, because the mean of its divisors is an integer number (67854150).

Almost surely, 2^1162664220 is an apocalyptic number.

1162664220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1162664220 is an abundant number, since it is smaller than the sum of its proper divisors (2094334980).

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

1162664220 is a wasteful number, since it uses less digits than its factorization.

1162664220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9174 (or 9172 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 1162664220 is about 34097.8623963439. The cubic root of 1162664220 is about 1051.5213682873.

The spelling of 1162664220 in words is "one billion, one hundred sixty-two million, six hundred sixty-four thousand, two hundred twenty".