40221316305 has 24 divisors (see below), whose sum is σ = 69883369920. Its totient is φ = 21400162080.

The previous prime is 40221316297. The next prime is 40221316339. The reversal of 40221316305 is 50361312204.

40221316305 is a `hidden beast` number, since 4 + 0 + 2 + 21 + 3 + 1 + 630 + 5 = 666.

It is not a de Polignac number, because 40221316305 - 2³ = 40221316297 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1047741 + ... + 1085450.

It is an arithmetic number, because the mean of its divisors is an integer number (2911807080).

Almost surely, 2^40221316305 is an apocalyptic number.

40221316305 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

40221316305 is a deficient number, since it is larger than the sum of its proper divisors (29662053615).

40221316305 is a wasteful number, since it uses less digits than its factorization.

40221316305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2133621 (or 2133618 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

Adding to 40221316305 its reverse (50361312204), we get a palindrome (90582628509).

The spelling of 40221316305 in words is "forty billion, two hundred twenty-one million, three hundred sixteen thousand, three hundred five".