155643478078876 has 6 divisors (see below), whose sum is σ = 272376086638040. Its totient is φ = 77821739039436.

The previous prime is 155643478078867. The next prime is 155643478078897. The reversal of 155643478078876 is 678870874346551.

155643478078876 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 155643478078796 and 155643478078805.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19455434759856 + ... + 19455434759863.

Almost surely, 2^{155643478078876} is an apocalyptic number.

It is an amenable number.

155643478078876 is a deficient number, since it is larger than the sum of its proper divisors (116732608559164).

155643478078876 is a wasteful number, since it uses less digits than its factorization.

155643478078876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38910869519723 (or 38910869519721 counting only the distinct ones).

The product of its (nonzero) digits is 7586611200, while the sum is 79.

The spelling of 155643478078876 in words is "one hundred fifty-five trillion, six hundred forty-three billion, four hundred seventy-eight million, seventy-eight thousand, eight hundred seventy-six".