15421402214206 has 32 divisors (see below), whose sum is σ = 25244302642272. Its totient is φ = 7035863546880.

The previous prime is 15421402214203. The next prime is 15421402214213. The reversal of 15421402214206 is 60241220412451.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15421402214201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21459076 + ... + 22166071.

It is an arithmetic number, because the mean of its divisors is an integer number (788884457571).

Almost surely, 2^{15421402214206} is an apocalyptic number.

15421402214206 is a deficient number, since it is larger than the sum of its proper divisors (9822900428066).

15421402214206 is a wasteful number, since it uses less digits than its factorization.

15421402214206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43625484.

The product of its (nonzero) digits is 30720, while the sum is 34.

Adding to 15421402214206 its reverse (60241220412451), we get a palindrome (75662622626657).

The spelling of 15421402214206 in words is "fifteen trillion, four hundred twenty-one billion, four hundred two million, two hundred fourteen thousand, two hundred six".