5493641664 has 280 divisors, whose sum is σ = 17979865488. Its totient is φ = 1475174400.

The previous prime is 5493641641. The next prime is 5493641677. The reversal of 5493641664 is 4661463945.

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 39 ways as a sum of consecutive naturals, for example, 7836514 + ... + 7837214.

Almost surely, 2^5493641664 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 5493641664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8989932744).

5493641664 is an abundant number, since it is smaller than the sum of its proper divisors (12486223824).

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

5493641664 is an equidigital number, since it uses as much as digits as its factorization.

5493641664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 761 (or 730 counting only the distinct ones).

The product of its digits is 1866240, while the sum is 48.

The square root of 5493641664 is about 74119.1045817473. The cubic root of 5493641664 is about 1764.4936889793.

The spelling of 5493641664 in words is "five billion, four hundred ninety-three million, six hundred forty-one thousand, six hundred sixty-four".