14151551545221 has 4 divisors (see below), whose sum is σ = 18868735393632. Its totient is φ = 9434367696812.

The previous prime is 14151551545211. The next prime is 14151551545249. The reversal of 14151551545221 is 12254515515141.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 14151551545221 - 2¹⁴ = 14151551528837 is a prime.

It is a super-2 number, since 2×14151551545221² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14151551545211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2358591924201 + ... + 2358591924206.

It is an arithmetic number, because the mean of its divisors is an integer number (4717183848408).

Almost surely, 2^{14151551545221} is an apocalyptic number.

It is an amenable number.

14151551545221 is a deficient number, since it is larger than the sum of its proper divisors (4717183848411).

14151551545221 is an equidigital number, since it uses as much as digits as its factorization.

14151551545221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4717183848410.

The product of its digits is 200000, while the sum is 42.

The spelling of 14151551545221 in words is "fourteen trillion, one hundred fifty-one billion, five hundred fifty-one million, five hundred forty-five thousand, two hundred twenty-one".