12154606204405 has 48 divisors (see below), whose sum is σ = 17018063038080. Its totient is φ = 8309434896000.

The previous prime is 12154606204397. The next prime is 12154606204423. The reversal of 12154606204405 is 50440260645121.

It is not a de Polignac number, because 12154606204405 - 2³ = 12154606204397 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 448644910 + ... + 448672000.

It is an arithmetic number, because the mean of its divisors is an integer number (354542979960).

Almost surely, 2^{12154606204405} is an apocalyptic number.

It is an amenable number.

12154606204405 is a deficient number, since it is larger than the sum of its proper divisors (4863456833675).

12154606204405 is a wasteful number, since it uses less digits than its factorization.

12154606204405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32570 (or 32563 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 40.

Adding to 12154606204405 its reverse (50440260645121), we get a palindrome (62594866849526).

The spelling of 12154606204405 in words is "twelve trillion, one hundred fifty-four billion, six hundred six million, two hundred four thousand, four hundred five".