54216066456 has 48 divisors (see below), whose sum is σ = 146861006760. Its totient is φ = 18068843520.

The previous prime is 54216066451. The next prime is 54216066467. The reversal of 54216066456 is 65466061245.

54216066456 is a `hidden beast` number, since 542 + 1 + 6 + 0 + 66 + 45 + 6 = 666.

54216066456 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×54216066456² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54216066451) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 365371 + ... + 491861.

Almost surely, 2^54216066456 is an apocalyptic number.

It is an amenable number.

54216066456 is an abundant number, since it is smaller than the sum of its proper divisors (92644940304).

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

54216066456 is a wasteful number, since it uses less digits than its factorization.

54216066456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132456 (or 132449 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 45.

The spelling of 54216066456 in words is "fifty-four billion, two hundred sixteen million, sixty-six thousand, four hundred fifty-six".