6520064652 has 24 divisors (see below), whose sum is σ = 16903871600. Its totient is φ = 2173354848.

The previous prime is 6520064651. The next prime is 6520064653. The reversal of 6520064652 is 2564600256.

6520064652 is a `hidden beast` number, since 6 + 5 + 2 + 0 + 0 + 646 + 5 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (6520064651) and next prime (6520064653).

It is a super-2 number, since 2×6520064652² = 85022486132519762208, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (6520064651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30185377 + ... + 30185592.

Almost surely, 2^6520064652 is an apocalyptic number.

It is an amenable number.

6520064652 is an abundant number, since it is smaller than the sum of its proper divisors (10383806948).

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

6520064652 is a wasteful number, since it uses less digits than its factorization.

6520064652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60370982 (or 60370974 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

The square root of 6520064652 is about 80746.9172910025. The cubic root of 6520064652 is about 1868.1739017213.

The spelling of 6520064652 in words is "six billion, five hundred twenty million, sixty-four thousand, six hundred fifty-two".