12137117515670 has 24 divisors (see below), whose sum is σ = 25413637901184. Its totient is φ = 4161297433776.

The previous prime is 12137117515667. The next prime is 12137117515723. The reversal of 12137117515670 is 7651571173121.

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, 12384813302 + ... + 12384814281.

It is an arithmetic number, because the mean of its divisors is an integer number (1058901579216).

Almost surely, 2^{12137117515670} is an apocalyptic number.

12137117515670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12137117515670 is an abundant number, since it is smaller than the sum of its proper divisors (13276520385514).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12137117515670 is a wasteful number, since it uses less digits than its factorization.

12137117515670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24769627604 (or 24769627597 counting only the distinct ones).

The product of its (nonzero) digits is 308700, while the sum is 47.

Adding to 12137117515670 its reverse (7651571173121), we get a palindrome (19788688688791).

The spelling of 12137117515670 in words is "twelve trillion, one hundred thirty-seven billion, one hundred seventeen million, five hundred fifteen thousand, six hundred seventy".