6615432480 has 96 divisors (see below), whose sum is σ = 20906956224. Its totient is φ = 1758329856.

The previous prime is 6615432463. The next prime is 6615432487. The reversal of 6615432480 is 842345166.

It is a tau number, because it is divible by the number of its divisors (96).

It is not an unprimeable number, because it can be changed into a prime (6615432487) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 124914 + ... + 169806.

It is an arithmetic number, because the mean of its divisors is an integer number (217780794).

Almost surely, 2^6615432480 is an apocalyptic number.

6615432480 is a gapful number since it is divisible by the number (60) 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 6615432480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10453478112).

6615432480 is an abundant number, since it is smaller than the sum of its proper divisors (14291523744).

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

6615432480 is a wasteful number, since it uses less digits than its factorization.

6615432480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45218 (or 45210 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 39.

The square root of 6615432480 is about 81335.3089377547. The cubic root of 6615432480 is about 1877.2383323775.

The spelling of 6615432480 in words is "six billion, six hundred fifteen million, four hundred thirty-two thousand, four hundred eighty".