56378520072 has 80 divisors (see below), whose sum is σ = 180470938560. Its totient is φ = 16108147296.

The previous prime is 56378520067. The next prime is 56378520091. The reversal of 56378520072 is 27002587365.

56378520072 is a `hidden beast` number, since 5 + 6 + 378 + 5 + 200 + 72 = 666.

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, 6210028 + ... + 6219099.

It is an arithmetic number, because the mean of its divisors is an integer number (2255886732).

Almost surely, 2^56378520072 is an apocalyptic number.

It is an amenable number.

56378520072 is an abundant number, since it is smaller than the sum of its proper divisors (124092418488).

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

56378520072 is a wasteful number, since it uses less digits than its factorization.

56378520072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12429152 (or 12429139 counting only the distinct ones).

The product of its (nonzero) digits is 705600, while the sum is 45.

The spelling of 56378520072 in words is "fifty-six billion, three hundred seventy-eight million, five hundred twenty thousand, seventy-two".