54205546644 has 72 divisors (see below), whose sum is σ = 140373865632. Its totient is φ = 17627198400.

The previous prime is 54205546621. The next prime is 54205546667. The reversal of 54205546644 is 44664550245.

54205546644 is a `hidden beast` number, since 5 + 42 + 0 + 5 + 546 + 64 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (54205546621) and next prime (54205546667).

It is a self number, because there is not a number n which added to its sum of digits gives 54205546644.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1299919 + ... + 1340969.

Almost surely, 2^54205546644 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 54205546644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70186932816).

54205546644 is an abundant number, since it is smaller than the sum of its proper divisors (86168318988).

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

54205546644 is a wasteful number, since it uses less digits than its factorization.

54205546644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41957 (or 41952 counting only the distinct ones).

The product of its (nonzero) digits is 2304000, while the sum is 45.

The spelling of 54205546644 in words is "fifty-four billion, two hundred five million, five hundred forty-six thousand, six hundred forty-four".