2161441612 has 48 divisors (see below), whose sum is σ = 4264533504. Its totient is φ = 950040000.

The previous prime is 2161441573. The next prime is 2161441637.

2161441612 is nontrivially palindromic in base 10.

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, 185437 + ... + 196747.

It is an arithmetic number, because the mean of its divisors is an integer number (88844448).

Almost surely, 2^2161441612 is an apocalyptic number.

2161441612 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2161441612 is a deficient number, since it is larger than the sum of its proper divisors (2103091892).

2161441612 is a wasteful number, since it uses less digits than its factorization.

2161441612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11470 (or 11468 counting only the distinct ones).

The product of its digits is 2304, while the sum is 28.

The square root of 2161441612 is about 46491.3068433229. The cubic root of 2161441612 is about 1292.9483295927.

The spelling of 2161441612 in words is "two billion, one hundred sixty-one million, four hundred forty-one thousand, six hundred twelve".