12546515151 has 48 divisors (see below), whose sum is σ = 19564167168. Its totient is φ = 7719532800.

The previous prime is 12546515147. The next prime is 12546515171. The reversal of 12546515151 is 15151564521.

12546515151 is a `hidden beast` number, since 12 + 546 + 5 + 1 + 51 + 51 = 666.

It is not a de Polignac number, because 12546515151 - 2² = 12546515147 is a prime.

12546515151 is a modest number, since divided by 515151 gives 12546 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12546515101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2071810 + ... + 2077856.

It is an arithmetic number, because the mean of its divisors is an integer number (407586816).

Almost surely, 2^12546515151 is an apocalyptic number.

12546515151 is a deficient number, since it is larger than the sum of its proper divisors (7017652017).

12546515151 is a wasteful number, since it uses less digits than its factorization.

12546515151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6332 (or 6329 counting only the distinct ones).

The product of its digits is 30000, while the sum is 36.

The spelling of 12546515151 in words is "twelve billion, five hundred forty-six million, five hundred fifteen thousand, one hundred fifty-one".