21160211732 has 24 divisors (see below), whose sum is σ = 40850671680. Its totient is φ = 9510205760.

The previous prime is 21160211711. The next prime is 21160211749. The reversal of 21160211732 is 23711206112.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2697848 + ... + 2705679.

It is an arithmetic number, because the mean of its divisors is an integer number (1702111320).

Almost surely, 2^21160211732 is an apocalyptic number.

21160211732 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21160211732 is a deficient number, since it is larger than the sum of its proper divisors (19690459948).

21160211732 is a wasteful number, since it uses less digits than its factorization.

21160211732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5403631 (or 5403629 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 26.

Adding to 21160211732 its reverse (23711206112), we get a palindrome (44871417844).

The spelling of 21160211732 in words is "twenty-one billion, one hundred sixty million, two hundred eleven thousand, seven hundred thirty-two".