9961331699 has 8 divisors (see below), whose sum is σ = 10905582960. Its totient is φ = 9023526400.

The previous prime is 9961331689. The next prime is 9961331701.

9961331699 is nontrivially palindromic in base 10.

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 9961331699 - 2⁴ = 9961331683 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9961331689) 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, 1608254 + ... + 1614435.

It is an arithmetic number, because the mean of its divisors is an integer number (1363197870).

Almost surely, 2^9961331699 is an apocalyptic number.

9961331699 is a deficient number, since it is larger than the sum of its proper divisors (944251261).

9961331699 is a wasteful number, since it uses less digits than its factorization.

9961331699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3222981.

The product of its digits is 2125764, while the sum is 56.

The square root of 9961331699 is about 99806.4712280722. The cubic root of 9961331699 is about 2151.6541586962.

The spelling of 9961331699 in words is "nine billion, nine hundred sixty-one million, three hundred thirty-one thousand, six hundred ninety-nine".