6662415072 has 96 divisors (see below), whose sum is σ = 17961108480. Its totient is φ = 2161635840.

The previous prime is 6662415061. The next prime is 6662415091. The reversal of 6662415072 is 2705142666.

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

It is a super-2 number, since 2×6662415072² = 88775549183225530368, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6662415072.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 532278 + ... + 544650.

It is an arithmetic number, because the mean of its divisors is an integer number (187094880).

Almost surely, 2^6662415072 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 6662415072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8980554240).

6662415072 is an abundant number, since it is smaller than the sum of its proper divisors (11298693408).

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

6662415072 is a wasteful number, since it uses less digits than its factorization.

6662415072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12536 (or 12528 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 39.

The square root of 6662415072 is about 81623.6183466526. The cubic root of 6662415072 is about 1881.6718823047.

The spelling of 6662415072 in words is "six billion, six hundred sixty-two million, four hundred fifteen thousand, seventy-two".