78178124823660 has 60 divisors (see below), whose sum is σ = 245247673063008. Its totient is φ = 20847499952544.

The previous prime is 78178124823611. The next prime is 78178124823731. The reversal of 78178124823660 is 6632842187187.

It is a happy number.

78178124823660 is a `hidden beast` number, since 7 + 8 + 1 + 78 + 124 + 82 + 366 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (60).

It is a super-2 number, since 2×78178124823660² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 24129049252 + ... + 24129052491.

Almost surely, 2^{78178124823660} is an apocalyptic number.

It is an amenable number.

78178124823660 is an abundant number, since it is smaller than the sum of its proper divisors (167069548239348).

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

78178124823660 is a wasteful number, since it uses less digits than its factorization.

78178124823660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48258101764 (or 48258101753 counting only the distinct ones).

The product of its (nonzero) digits is 43352064, while the sum is 63.

The spelling of 78178124823660 in words is "seventy-eight trillion, one hundred seventy-eight billion, one hundred twenty-four million, eight hundred twenty-three thousand, six hundred sixty".