5540662644 has 96 divisors (see below), whose sum is σ = 14998628736. Its totient is φ = 1573294080.

The previous prime is 5540662591. The next prime is 5540662667. The reversal of 5540662644 is 4462660455.

It is a junction number, because it is equal to n+sod(n) for n = 5540662596 and 5540662605.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 517554 + ... + 528150.

It is an arithmetic number, because the mean of its divisors is an integer number (156235716).

Almost surely, 2^5540662644 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 5540662644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7499314368).

5540662644 is an abundant number, since it is smaller than the sum of its proper divisors (9457966092).

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

5540662644 is a wasteful number, since it uses less digits than its factorization.

5540662644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10865 (or 10863 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 42.

The square root of 5540662644 is about 74435.6275180105. The cubic root of 5540662644 is about 1769.5135910075.

The spelling of 5540662644 in words is "five billion, five hundred forty million, six hundred sixty-two thousand, six hundred forty-four".