5581971696 has 160 divisors (see below), whose sum is σ = 17384680960. Its totient is φ = 1507673088.

The previous prime is 5581971673. The next prime is 5581971697. The reversal of 5581971696 is 6961791855.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5581971697) 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, 5598270 + ... + 5599266.

It is an arithmetic number, because the mean of its divisors is an integer number (108654256).

Almost surely, 2^5581971696 is an apocalyptic number.

5581971696 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5581971696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8692340480).

5581971696 is an abundant number, since it is smaller than the sum of its proper divisors (11802709264).

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

5581971696 is a wasteful number, since it uses less digits than its factorization.

5581971696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1911 (or 1905 counting only the distinct ones).

The product of its digits is 4082400, while the sum is 57.

The square root of 5581971696 is about 74712.5939584485. The cubic root of 5581971696 is about 1773.9003116027.

The spelling of 5581971696 in words is "five billion, five hundred eighty-one million, nine hundred seventy-one thousand, six hundred ninety-six".