12513163157 has 16 divisors (see below), whose sum is σ = 14485433472. Its totient is φ = 10682949120.

The previous prime is 12513163153. The next prime is 12513163193. The reversal of 12513163157 is 75136131521.

It is a cyclic number.

It is not a de Polignac number, because 12513163157 - 2² = 12513163153 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12513163151) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12248 + ... + 158670.

It is an arithmetic number, because the mean of its divisors is an integer number (905339592).

Almost surely, 2^12513163157 is an apocalyptic number.

12513163157 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

12513163157 is a deficient number, since it is larger than the sum of its proper divisors (1972270315).

12513163157 is a wasteful number, since it uses less digits than its factorization.

12513163157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146908.

The product of its digits is 18900, while the sum is 35.

Adding to 12513163157 its reverse (75136131521), we get a palindrome (87649294678).

The spelling of 12513163157 in words is "twelve billion, five hundred thirteen million, one hundred sixty-three thousand, one hundred fifty-seven".