6507694656 has 224 divisors, whose sum is σ = 20958048000. Its totient is φ = 1970970624.

The previous prime is 6507694649. The next prime is 6507694663. The reversal of 6507694656 is 6564967056.

It is an interprime number because it is at equal distance from previous prime (6507694649) and next prime (6507694663).

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 (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 848085 + ... + 855723.

Almost surely, 2^6507694656 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 6507694656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10479024000).

6507694656 is an abundant number, since it is smaller than the sum of its proper divisors (14450353344).

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

6507694656 is a wasteful number, since it uses less digits than its factorization.

6507694656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7706 (or 7690 counting only the distinct ones).

The product of its (nonzero) digits is 8164800, while the sum is 54.

The square root of 6507694656 is about 80670.2835993527. The cubic root of 6507694656 is about 1866.9917082500.

The spelling of 6507694656 in words is "six billion, five hundred seven million, six hundred ninety-four thousand, six hundred fifty-six".