2211165460 has 24 divisors (see below), whose sum is σ = 5306797440. Its totient is φ = 758113824.

The previous prime is 2211165449. The next prime is 2211165461. The reversal of 2211165460 is 645611122.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2211165461) 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, 7896880 + ... + 7897159.

It is an arithmetic number, because the mean of its divisors is an integer number (221116560).

Almost surely, 2^2211165460 is an apocalyptic number.

2211165460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2211165460 is an abundant number, since it is smaller than the sum of its proper divisors (3095631980).

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

2211165460 is a wasteful number, since it uses less digits than its factorization.

2211165460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15794055 (or 15794053 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 2211165460 is about 47023.0311655895. The cubic root of 2211165460 is about 1302.7879928998.

Adding to 2211165460 its reverse (645611122), we get a palindrome (2856776582).

It can be divided in two parts, 221116 and 5460, that added together give a square (226576 = 476²).

The spelling of 2211165460 in words is "two billion, two hundred eleven million, one hundred sixty-five thousand, four hundred sixty".