21441096345 has 32 divisors (see below), whose sum is σ = 36120113280. Its totient is φ = 10830758400.

The previous prime is 21441096343. The next prime is 21441096349. The reversal of 21441096345 is 54369014412.

It is not a de Polignac number, because 21441096345 - 2¹ = 21441096343 is a prime.

It is a super-2 number, since 2×21441096345² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (21441096343) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1765795 + ... + 1777895.

It is an arithmetic number, because the mean of its divisors is an integer number (1128753540).

Almost surely, 2^21441096345 is an apocalyptic number.

It is an amenable number.

21441096345 is a deficient number, since it is larger than the sum of its proper divisors (14679016935).

21441096345 is a wasteful number, since it uses less digits than its factorization.

21441096345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18345.

The product of its (nonzero) digits is 103680, while the sum is 39.

The spelling of 21441096345 in words is "twenty-one billion, four hundred forty-one million, ninety-six thousand, three hundred forty-five".