12936169438920 has 192 divisors, whose sum is σ = 51744677886720. Its totient is φ = 2729389588992.

The previous prime is 12936169438889. The next prime is 12936169438963. The reversal of 12936169438920 is 2983496163921.

12936169438920 is a `hidden beast` number, since 1 + 2 + 9 + 3 + 616 + 9 + 4 + 3 + 8 + 9 + 2 + 0 = 666.

It is a super-2 number, since 2×12936169438920² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 197405724 + ... + 197471243.

It is an arithmetic number, because the mean of its divisors is an integer number (269503530660).

Almost surely, 2^{12936169438920} is an apocalyptic number.

12936169438920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12936169438920 is an abundant number, since it is smaller than the sum of its proper divisors (38808508447800).

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

12936169438920 is a wasteful number, since it uses less digits than its factorization.

12936169438920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394877004 (or 394876997 counting only the distinct ones).

The product of its (nonzero) digits is 30233088, while the sum is 63.

The spelling of 12936169438920 in words is "twelve trillion, nine hundred thirty-six billion, one hundred sixty-nine million, four hundred thirty-eight thousand, nine hundred twenty".