12501501400015 has 16 divisors (see below), whose sum is σ = 15898740448032. Its totient is φ = 9404314522624.

The previous prime is 12501501399977. The next prime is 12501501400021. The reversal of 12501501400015 is 51000410510521.

It is a cyclic number.

It is not a de Polignac number, because 12501501400015 - 2¹³ = 12501501391823 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66942529 + ... + 67129018.

It is an arithmetic number, because the mean of its divisors is an integer number (993671278002).

Almost surely, 2^{12501501400015} is an apocalyptic number.

12501501400015 is a deficient number, since it is larger than the sum of its proper divisors (3397239048017).

12501501400015 is a wasteful number, since it uses less digits than its factorization.

12501501400015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134072666.

The product of its (nonzero) digits is 1000, while the sum is 25.

Adding to 12501501400015 its reverse (51000410510521), we get a palindrome (63501911910536).

The spelling of 12501501400015 in words is "twelve trillion, five hundred one billion, five hundred one million, four hundred thousand, fifteen".