21160113760 has 48 divisors (see below), whose sum is σ = 50167521936. Its totient is φ = 8434119168.

The previous prime is 21160113749. The next prime is 21160113773. The reversal of 21160113760 is 6731106112.

It is a super-2 number, since 2×21160113760² (a number of 21 digits) contains 22 as substring.

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, 188379 + ... + 278938.

It is an arithmetic number, because the mean of its divisors is an integer number (1045156707).

Almost surely, 2^21160113760 is an apocalyptic number.

21160113760 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21160113760 is an abundant number, since it is smaller than the sum of its proper divisors (29007408176).

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

21160113760 is a wasteful number, since it uses less digits than its factorization.

21160113760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 467615 (or 467607 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 28.

Adding to 21160113760 its reverse (6731106112), we get a palindrome (27891219872).

The spelling of 21160113760 in words is "twenty-one billion, one hundred sixty million, one hundred thirteen thousand, seven hundred sixty".