5691334656 has 112 divisors (see below), whose sum is σ = 17344485504. Its totient is φ = 1626046464.

The previous prime is 5691334637. The next prime is 5691334667. The reversal of 5691334656 is 6564331965.

It is a tau number, because it is divible by the number of its divisors (112).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 155491 + ... + 188573.

Almost surely, 2^5691334656 is an apocalyptic number.

5691334656 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 5691334656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8672242752).

5691334656 is an abundant number, since it is smaller than the sum of its proper divisors (11653150848).

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

5691334656 is an equidigital number, since it uses as much as digits as its factorization.

5691334656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33119 (or 33095 counting only the distinct ones).

The product of its digits is 1749600, while the sum is 48.

The square root of 5691334656 is about 75440.9348828605. The cubic root of 5691334656 is about 1785.4103214455.

The spelling of 5691334656 in words is "five billion, six hundred ninety-one million, three hundred thirty-four thousand, six hundred fifty-six".