54645645546 has 64 divisors (see below), whose sum is σ = 128704930560. Its totient is φ = 17126807040.

The previous prime is 54645645541. The next prime is 54645645557. The reversal of 54645645546 is 64554654645.

54645645546 is a `hidden beast` number, since 5 + 4 + 6 + 4 + 56 + 45 + 546 = 666.

It is a super-2 number, since 2×54645645546² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 54645645492 and 54645645501.

It is not an unprimeable number, because it can be changed into a prime (54645645541) 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, 917590 + ... + 975326.

It is an arithmetic number, because the mean of its divisors is an integer number (2011014540).

Almost surely, 2^54645645546 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 54645645546, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64352465280).

54645645546 is an abundant number, since it is smaller than the sum of its proper divisors (74059285014).

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

54645645546 is a wasteful number, since it uses less digits than its factorization.

54645645546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58796 (or 58790 counting only the distinct ones).

The product of its digits is 34560000, while the sum is 54.

Subtracting 54645645546 from its reverse (64554654645), we obtain a palindrome (9909009099).

The spelling of 54645645546 in words is "fifty-four billion, six hundred forty-five million, six hundred forty-five thousand, five hundred forty-six".