7996664520 has 512 divisors, whose sum is σ = 31223808000. Its totient is φ = 1802787840.

The previous prime is 7996664513. The next prime is 7996664563. The reversal of 7996664520 is 254666997.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 8269077 + ... + 8270043.

It is an arithmetic number, because the mean of its divisors is an integer number (60984000).

Almost surely, 2^7996664520 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 7996664520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15611904000).

7996664520 is an abundant number, since it is smaller than the sum of its proper divisors (23227143480).

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

7996664520 is a wasteful number, since it uses less digits than its factorization.

7996664520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1050 (or 1040 counting only the distinct ones).

The product of its (nonzero) digits is 4898880, while the sum is 54.

The square root of 7996664520 is about 89424.0712560103. The cubic root of 7996664520 is about 1999.7220046944.

The spelling of 7996664520 in words is "seven billion, nine hundred ninety-six million, six hundred sixty-four thousand, five hundred twenty".