54386566956 has 18 divisors (see below), whose sum is σ = 137477155452. Its totient is φ = 18128855640.

The previous prime is 54386566943. The next prime is 54386566999. The reversal of 54386566956 is 65966568345.

54386566956 is a `hidden beast` number, since 543 + 86 + 5 + 6 + 6 + 9 + 5 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×54386566956² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 54386566893 and 54386566902.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 755368950 + ... + 755369021.

Almost surely, 2^54386566956 is an apocalyptic number.

It is an amenable number.

54386566956 is an abundant number, since it is smaller than the sum of its proper divisors (83090588496).

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

54386566956 is a wasteful number, since it uses less digits than its factorization.

54386566956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1510737981 (or 1510737976 counting only the distinct ones).

The product of its digits is 139968000, while the sum is 63.

The spelling of 54386566956 in words is "fifty-four billion, three hundred eighty-six million, five hundred sixty-six thousand, nine hundred fifty-six".