6354665472 has 128 divisors (see below), whose sum is σ = 17112499200. Its totient is φ = 2097414144.

The previous prime is 6354665461. The next prime is 6354665509. The reversal of 6354665472 is 2745664536.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×6354665472² = 80763546522057965568, which contains 22 as substring.

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

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, 12484354 + ... + 12484862.

It is an arithmetic number, because the mean of its divisors is an integer number (133691400).

Almost surely, 2^6354665472 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 6354665472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8556249600).

6354665472 is an abundant number, since it is smaller than the sum of its proper divisors (10757833728).

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

6354665472 is an equidigital number, since it uses as much as digits as its factorization.

6354665472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 669 (or 641 counting only the distinct ones).

The product of its digits is 3628800, while the sum is 48.

The square root of 6354665472 is about 79716.1556524146. The cubic root of 6354665472 is about 1852.2413032042.

The spelling of 6354665472 in words is "six billion, three hundred fifty-four million, six hundred sixty-five thousand, four hundred seventy-two".