15401214222545 has 8 divisors (see below), whose sum is σ = 18528009858024. Its totient is φ = 12289936184064.

The previous prime is 15401214222523. The next prime is 15401214222551. The reversal of 15401214222545 is 54522241210451.

15401214222545 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2688652163521 + 12712562059024 = 1639711^2 + 3565468^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 15401214222545 - 2³⁶ = 15332494745809 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 15401214222499 and 15401214222508.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3879397064 + ... + 3879401033.

It is an arithmetic number, because the mean of its divisors is an integer number (2316001232253).

Almost surely, 2^{15401214222545} is an apocalyptic number.

It is an amenable number.

15401214222545 is a deficient number, since it is larger than the sum of its proper divisors (3126795635479).

15401214222545 is an equidigital number, since it uses as much as digits as its factorization.

15401214222545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7758798499.

The product of its (nonzero) digits is 128000, while the sum is 38.

Adding to 15401214222545 its reverse (54522241210451), we get a palindrome (69923455432996).

The spelling of 15401214222545 in words is "fifteen trillion, four hundred one billion, two hundred fourteen million, two hundred twenty-two thousand, five hundred forty-five".