12078169502 has 16 divisors (see below), whose sum is σ = 20718837600. Its totient is φ = 5173007328.

The previous prime is 12078169457. The next prime is 12078169549. The reversal of 12078169502 is 20596187021.

It is a self number, because there is not a number n which added to its sum of digits gives 12078169502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 256793 + ... + 300164.

It is an arithmetic number, because the mean of its divisors is an integer number (1294927350).

Almost surely, 2^12078169502 is an apocalyptic number.

12078169502 is a deficient number, since it is larger than the sum of its proper divisors (8640668098).

12078169502 is a wasteful number, since it uses less digits than its factorization.

12078169502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 558515.

The product of its (nonzero) digits is 60480, while the sum is 41.

The spelling of 12078169502 in words is "twelve billion, seventy-eight million, one hundred sixty-nine thousand, five hundred two".