9661662914 has 4 divisors (see below), whose sum is σ = 14492494374. Its totient is φ = 4830831456.

The previous prime is 9661662863. The next prime is 9661662917. The reversal of 9661662914 is 4192661669.

9661662914 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 8007207289 + 1654455625 = 89483^2 + 40675^2 .

It is not an unprimeable number, because it can be changed into a prime (9661662917) by changing a digit.

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 as a sum of consecutive naturals, namely, 2415415727 + ... + 2415415730.

Almost surely, 2^9661662914 is an apocalyptic number.

9661662914 is a deficient number, since it is larger than the sum of its proper divisors (4830831460).

9661662914 is a wasteful number, since it uses less digits than its factorization.

9661662914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4830831459.

The product of its digits is 839808, while the sum is 50.

The square root of 9661662914 is about 98293.7582657210. The cubic root of 9661662914 is about 2129.8578901126.

The spelling of 9661662914 in words is "nine billion, six hundred sixty-one million, six hundred sixty-two thousand, nine hundred fourteen".