15414605221 has 16 divisors (see below), whose sum is σ = 16523377920. Its totient is φ = 14344401280.

The previous prime is 15414605207. The next prime is 15414605233. The reversal of 15414605221 is 12250641451.

It is a happy number.

15414605221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 15414605221 - 2⁵ = 15414605189 is a prime.

It is a super-2 number, since 2×15414605221² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15414605201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 315771 + ... + 361303.

It is an arithmetic number, because the mean of its divisors is an integer number (1032711120).

Almost surely, 2^15414605221 is an apocalyptic number.

It is an amenable number.

15414605221 is a deficient number, since it is larger than the sum of its proper divisors (1108772699).

15414605221 is a wasteful number, since it uses less digits than its factorization.

15414605221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45956.

The product of its (nonzero) digits is 9600, while the sum is 31.

The spelling of 15414605221 in words is "fifteen billion, four hundred fourteen million, six hundred five thousand, two hundred twenty-one".