15416132421 has 16 divisors (see below), whose sum is σ = 21454350336. Its totient is φ = 9827910576.

The previous prime is 15416132411. The next prime is 15416132449. The reversal of 15416132421 is 12423161451.

It is not a de Polignac number, because 15416132421 - 2⁹ = 15416131909 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15416132411) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 243736 + ... + 300398.

It is an arithmetic number, because the mean of its divisors is an integer number (1340896896).

Almost surely, 2^15416132421 is an apocalyptic number.

It is an amenable number.

15416132421 is a deficient number, since it is larger than the sum of its proper divisors (6038217915).

15416132421 is a wasteful number, since it uses less digits than its factorization.

15416132421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60632.

The product of its digits is 5760, while the sum is 30.

Adding to 15416132421 its reverse (12423161451), we get a palindrome (27839293872).

The spelling of 15416132421 in words is "fifteen billion, four hundred sixteen million, one hundred thirty-two thousand, four hundred twenty-one".