5515867944 has 96 divisors (see below), whose sum is σ = 15837719040. Its totient is φ = 1731196800.

The previous prime is 5515867921. The next prime is 5515867961. The reversal of 5515867944 is 4497685155.

It is a happy number.

5515867944 is a `hidden beast` number, since 5 + 51 + 586 + 7 + 9 + 4 + 4 = 666.

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, 49189 + ... + 115979.

It is an arithmetic number, because the mean of its divisors is an integer number (164976240).

Almost surely, 2^5515867944 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 5515867944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7918859520).

5515867944 is an abundant number, since it is smaller than the sum of its proper divisors (10321851096).

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

5515867944 is a wasteful number, since it uses less digits than its factorization.

5515867944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66871 (or 66864 counting only the distinct ones).

The product of its digits is 6048000, while the sum is 54.

The square root of 5515867944 is about 74268.8894760114. The cubic root of 5515867944 is about 1766.8700944025.

The spelling of 5515867944 in words is "five billion, five hundred fifteen million, eight hundred sixty-seven thousand, nine hundred forty-four".