54178155612 has 96 divisors (see below), whose sum is σ = 164866544640. Its totient is φ = 15061101120.

The previous prime is 54178155611. The next prime is 54178155641. The reversal of 54178155612 is 21655187145.

54178155612 is a `hidden beast` number, since 5 + 4 + 1 + 7 + 81 + 5 + 561 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54178155611) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 940464 + ... + 996407.

It is an arithmetic number, because the mean of its divisors is an integer number (1717359840).

Almost surely, 2^54178155612 is an apocalyptic number.

It is an amenable number.

54178155612 is an abundant number, since it is smaller than the sum of its proper divisors (110688389028).

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

54178155612 is a wasteful number, since it uses less digits than its factorization.

54178155612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1936928 (or 1936920 counting only the distinct ones).

The product of its digits is 336000, while the sum is 45.

The spelling of 54178155612 in words is "fifty-four billion, one hundred seventy-eight million, one hundred fifty-five thousand, six hundred twelve".