12158413525 has 12 divisors (see below), whose sum is σ = 15731930592. Its totient is φ = 9303829040.

The previous prime is 12158413507. The next prime is 12158413607. The reversal of 12158413525 is 52531485121.

It is not a de Polignac number, because 12158413525 - 2¹³ = 12158405333 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 11 ways as a sum of consecutive naturals, for example, 10571959 + ... + 10573108.

It is an arithmetic number, because the mean of its divisors is an integer number (1310994216).

Almost surely, 2^12158413525 is an apocalyptic number.

It is an amenable number.

12158413525 is a deficient number, since it is larger than the sum of its proper divisors (3573517067).

12158413525 is a wasteful number, since it uses less digits than its factorization.

12158413525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21145100 (or 21145095 counting only the distinct ones).

The product of its digits is 48000, while the sum is 37.

Adding to 12158413525 its reverse (52531485121), we get a palindrome (64689898646).

The spelling of 12158413525 in words is "twelve billion, one hundred fifty-eight million, four hundred thirteen thousand, five hundred twenty-five".