12157061113547 has 8 divisors (see below), whose sum is σ = 14028675238656. Its totient is φ = 10319169765672.

The previous prime is 12157061113529. The next prime is 12157061113601. The reversal of 12157061113547 is 74531116075121.

12157061113547 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 12157061113547 - 2³² = 12152766146251 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12157061113498 and 12157061113507.

It is not an unprimeable number, because it can be changed into a prime (12157061110547) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8430693533 + ... + 8430694974.

It is an arithmetic number, because the mean of its divisors is an integer number (1753584404832).

Almost surely, 2^{12157061113547} is an apocalyptic number.

12157061113547 is a deficient number, since it is larger than the sum of its proper divisors (1871614125109).

12157061113547 is a wasteful number, since it uses less digits than its factorization.

12157061113547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16861388617.

The product of its (nonzero) digits is 176400, while the sum is 44.

Adding to 12157061113547 its reverse (74531116075121), we get a palindrome (86688177188668).

The spelling of 12157061113547 in words is "twelve trillion, one hundred fifty-seven billion, sixty-one million, one hundred thirteen thousand, five hundred forty-seven".