9967648651 has 8 divisors (see below), whose sum is σ = 10091366208. Its totient is φ = 9844653000.

The previous prime is 9967648631. The next prime is 9967648693. The reversal of 9967648651 is 1568467699.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 9967648651 - 2⁵ = 9967648619 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9967648651.

It is not an unprimeable number, because it can be changed into a prime (9967648601) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 152665 + ... + 207946.

It is an arithmetic number, because the mean of its divisors is an integer number (1261420776).

Almost surely, 2^9967648651 is an apocalyptic number.

9967648651 is a deficient number, since it is larger than the sum of its proper divisors (123717557).

9967648651 is a wasteful number, since it uses less digits than its factorization.

9967648651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360953.

The product of its digits is 19595520, while the sum is 61.

The square root of 9967648651 is about 99838.1122167281. The cubic root of 9967648651 is about 2152.1088845091.

The spelling of 9967648651 in words is "nine billion, nine hundred sixty-seven million, six hundred forty-eight thousand, six hundred fifty-one".