5556691496440 has 128 divisors (see below), whose sum is σ = 14388608171520. Its totient is φ = 1891841702400.

The previous prime is 5556691496399. The next prime is 5556691496443. The reversal of 5556691496440 is 446941966555.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5556691496443) 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, 53849295 + ... + 53952385.

It is an arithmetic number, because the mean of its divisors is an integer number (112411001340).

Almost surely, 2^{5556691496440} 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 5556691496440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7194304085760).

5556691496440 is an abundant number, since it is smaller than the sum of its proper divisors (8831916675080).

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

5556691496440 is a wasteful number, since it uses less digits than its factorization.

5556691496440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104453 (or 104449 counting only the distinct ones).

The product of its (nonzero) digits is 139968000, while the sum is 64.

The spelling of 5556691496440 in words is "five trillion, five hundred fifty-six billion, six hundred ninety-one million, four hundred ninety-six thousand, four hundred forty".