12145552512415 has 16 divisors (see below), whose sum is σ = 16672882425408. Its totient is φ = 8320316518656.

The previous prime is 12145552512409. The next prime is 12145552512437. The reversal of 12145552512415 is 51421525554121.

It is a cyclic number.

It is not a de Polignac number, because 12145552512415 - 2⁷ = 12145552512287 is a prime.

It is a super-3 number, since 3×12145552512415³ (a number of 40 digits) contains 333 as substring.

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, 167928892 + ... + 168001201.

It is an arithmetic number, because the mean of its divisors is an integer number (1042055151588).

Almost surely, 2^{12145552512415} is an apocalyptic number.

12145552512415 is a deficient number, since it is larger than the sum of its proper divisors (4527329912993).

12145552512415 is a wasteful number, since it uses less digits than its factorization.

12145552512415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335931138.

The product of its digits is 400000, while the sum is 43.

The spelling of 12145552512415 in words is "twelve trillion, one hundred forty-five billion, five hundred fifty-two million, five hundred twelve thousand, four hundred fifteen".